Java syntax - Revision history

Z. Patterson: Rescuing 6 sources and tagging 0 as dead.) #IABot (v2.0.9.5

2025-04-21T01:28:10Z

Rescuing 6 sources and tagging 0 as dead.) #IABot (v2.0.9.5

← Previous revision		Revision as of 01:28, 21 April 2025
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	! 2		! 2
	\| style="border-bottom-style: none" \| <code>++</code> <code>--</code>		\| style="border-bottom-style: none" \| <code>++</code> <code>--</code>
	\| style="border-bottom-style: none" \| Postfix increment and decrement<ref>{{Cite web\|title = Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url = http://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html\|website = docs.oracle.com\|access-date = June 16, 2015\|publisher = Oracle and/or its affiliates}}</ref>		\| style="border-bottom-style: none" \| Postfix increment and decrement<ref>{{Cite web\|title = Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url = http://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html\|website = docs.oracle.com\|access-date = June 16, 2015\|publisher = Oracle and/or its affiliates\|archive-date = June 24, 2015\|archive-url = https://web.archive.org/web/20150624161036/http://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html\|url-status = live}}</ref>
	\|-		\|-
	! rowspan=5\| 3		! rowspan=5\| 3
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	====<code>switch</code> statement====		====<code>switch</code> statement====
	[[Switch statement]]s in Java can use <code>byte</code>, <code>short</code>, <code>char</code>, and <code>int</code> (not <code>long</code>) primitive data types or their corresponding wrapper types. Starting with J2SE 5.0, it is possible to use [[Enumerated type\|enum types]]. Starting with Java SE 7, it is possible to use Strings.<ref>{{Cite web\|title=The switch Statement (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url=https://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html\|access-date=August 15, 2021\|website=docs.oracle.com}}</ref> Other [[reference type]]s cannot be used in <code>switch</code> statements.		[[Switch statement]]s in Java can use <code>byte</code>, <code>short</code>, <code>char</code>, and <code>int</code> (not <code>long</code>) primitive data types or their corresponding wrapper types. Starting with J2SE 5.0, it is possible to use [[Enumerated type\|enum types]]. Starting with Java SE 7, it is possible to use Strings.<ref>{{Cite web\|title=The switch Statement (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url=https://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html\|access-date=August 15, 2021\|website=docs.oracle.com\|archive-date=March 15, 2010\|archive-url=https://web.archive.org/web/20100315060844/http://java.sun.com/docs/books/tutorial/java/nutsandbolts/switch.html\|url-status=live}}</ref> Other [[reference type]]s cannot be used in <code>switch</code> statements.

	Possible values are listed using <code>case</code> labels. These labels in Java may contain only constants (including enum constants and string constants). Execution will start after the label corresponding to the expression inside the brackets. An optional <code>default</code> label may be present to declare that the code following it will be executed if none of the case labels correspond to the expression.		Possible values are listed using <code>case</code> labels. These labels in Java may contain only constants (including enum constants and string constants). Execution will start after the label corresponding to the expression inside the brackets. An optional <code>default</code> label may be present to declare that the code following it will be executed if none of the case labels correspond to the expression.
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	==Primitive types==		==Primitive types==
	Primitive types in Java include integer types, floating-point numbers, [[UTF-16]] code units and a Boolean type. There are no unsigned types in Java except <code>char</code> type, which is used to represent UTF-16 code units. The lack of unsigned types is offset by introducing unsigned right shift operation (<code>>>></code>), which is not present in C++. Nevertheless, criticisms have been leveled about the lack of compatibility with C and C++ this causes.<ref>{{cite web\|url=http://darksleep.com/player/JavaAndUnsignedTypes.html\|first=Sean\|last=Owens\|title=Java and unsigned int, unsigned short, unsigned byte, unsigned long, etc. (Or rather, the lack thereof)}}</ref> <!-- This is a terrible citation. If you have a better one, use it. -->		Primitive types in Java include integer types, floating-point numbers, [[UTF-16]] code units and a Boolean type. There are no unsigned types in Java except <code>char</code> type, which is used to represent UTF-16 code units. The lack of unsigned types is offset by introducing unsigned right shift operation (<code>>>></code>), which is not present in C++. Nevertheless, criticisms have been leveled about the lack of compatibility with C and C++ this causes.<ref>{{cite web\|url=http://darksleep.com/player/JavaAndUnsignedTypes.html\|first=Sean\|last=Owens\|title=Java and unsigned int, unsigned short, unsigned byte, unsigned long, etc. (Or rather, the lack thereof)\|access-date=April 21, 2010\|archive-date=February 20, 2009\|archive-url=https://web.archive.org/web/20090220171410/http://darksleep.com/player/JavaAndUnsignedTypes.html\|url-status=live}}</ref> <!-- This is a terrible citation. If you have a better one, use it. -->

	{\| class="wikitable"		{\| class="wikitable"
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	</syntaxhighlight>		</syntaxhighlight>

	Lambda's parameters types do not have to be fully specified and can be inferred from the interface it implements. Lambda's body can be written without a body block and a <code>return</code> statement if it is only an expression. Also, for those interfaces which only have a single parameter in the method, round brackets can be omitted.<ref>{{Cite web\|title=Lambda Expressions (The Java™ Tutorials > Learning the Java Language > Classes and Objects)\|url=https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html\|access-date=August 8, 2021\|website=docs.oracle.com}}</ref>		Lambda's parameters types do not have to be fully specified and can be inferred from the interface it implements. Lambda's body can be written without a body block and a <code>return</code> statement if it is only an expression. Also, for those interfaces which only have a single parameter in the method, round brackets can be omitted.<ref>{{Cite web\|title=Lambda Expressions (The Java™ Tutorials > Learning the Java Language > Classes and Objects)\|url=https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html\|access-date=August 8, 2021\|website=docs.oracle.com\|archive-date=June 16, 2020\|archive-url=https://web.archive.org/web/20200616055353/https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html\|url-status=live}}</ref>

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">
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	{{Main\|Generics in Java}}		{{Main\|Generics in Java}}

	[[Generic programming\|Generics]], or parameterized types, or [[parametric polymorphism]], is one of the major features introduced in [[J2SE 5.0]]. Before generics were introduced, it was required to declare all the types explicitly. With generics, it became possible to work in a similar manner with different types without declaring the exact types. The main purpose of generics is to ensure type safety and to detect runtime errors during compilation. Unlike C#, information on the used parameters is not available at runtime due to [[type erasure]].<ref>[https://msdn.microsoft.com/en-us/library/f4a6ta2h.aspx Generics in the Run Time (C# Programming Guide)]</ref>		[[Generic programming\|Generics]], or parameterized types, or [[parametric polymorphism]], is one of the major features introduced in [[J2SE 5.0]]. Before generics were introduced, it was required to declare all the types explicitly. With generics, it became possible to work in a similar manner with different types without declaring the exact types. The main purpose of generics is to ensure type safety and to detect runtime errors during compilation. Unlike C#, information on the used parameters is not available at runtime due to [[type erasure]].<ref>{{Cite web \|url=https://msdn.microsoft.com/en-us/library/f4a6ta2h.aspx \|title=Generics in the Run Time (C# Programming Guide) \|access-date=March 9, 2016 \|archive-date=March 10, 2016 \|archive-url=https://web.archive.org/web/20160310012449/https://msdn.microsoft.com/en-us/library/f4a6ta2h.aspx \|url-status=live }}</ref>

	===Generic classes===		===Generic classes===
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	{{Refbegin}}		{{Refbegin}}
	* {{cite book \|last1=Naughton \|first1=Patrick \|author1-link=Patrick Naughton \|last2=Schildt \|first2=Herbert \|author2-link=Herbert Schildt \|year=1999 \|title=Java 2: The Complete Reference \|edition=3rd \|publisher=The McGraw-Hill Companies \|isbn=0-07-211976-4}}		* {{cite book \|last1=Naughton \|first1=Patrick \|author1-link=Patrick Naughton \|last2=Schildt \|first2=Herbert \|author2-link=Herbert Schildt \|year=1999 \|title=Java 2: The Complete Reference \|edition=3rd \|publisher=The McGraw-Hill Companies \|isbn=0-07-211976-4}}
	* {{cite book \|last1=Vermeulen \|last2=Ambler \|last3=Bumgardner \|last4=Metz \|last5=Misfeldt \|last6=Shur \|last7=Thompson \|year=2000 \|title=The Elements of Java Style \|url-access=registration \|url=https://archive.org/details/elementsofjavast00verm \|publisher=Cambridge University Press \|isbn=0-521-77768-2}}		* {{cite book \|last1=Vermeulen \|last2=Ambler \|last3=Bumgardner \|last4=Metz \|last5=Misfeldt \|last6=Shur \|last7=Thompson \|year=2000 \|title=The Elements of Java Style \|url-access=registration \|url=https://archive.org/details/elementsofjavast00verm \|publisher=Cambridge University Press \|isbn=0-521-77768-2 }}
	* {{cite book \|last1=Gosling \|first1=James \|author1-link=James Gosling \|last2=Joy \|first2=Bill \|author2-link=Bill Joy \|last3=Steele \|first3=Guy \|author3-link=Guy L. Steele Jr. \|last4=Bracha \|first4=Gilad \|year=2005 \|title=Java Language Specification \|edition=3rd \|url=http://java.sun.com/docs/books/jls/ \|publisher=Addison-Wesley Professional \|access-date=December 3, 2008}}		* {{cite book \|last1=Gosling \|first1=James \|author1-link=James Gosling \|last2=Joy \|first2=Bill \|author2-link=Bill Joy \|last3=Steele \|first3=Guy \|author3-link=Guy L. Steele Jr. \|last4=Bracha \|first4=Gilad \|year=2005 \|title=Java Language Specification \|edition=3rd \|url=http://java.sun.com/docs/books/jls/ \|publisher=Addison-Wesley Professional \|access-date=December 3, 2008 \|archive-date=February 26, 2009 \|archive-url=https://web.archive.org/web/20090226152425/http://java.sun.com/docs/books/jls/ \|url-status=live }}
	{{Refend}}		{{Refend}}

Z. Patterson: The article has American English spellings. Do not use contractions.

2025-04-21T01:27:18Z

The article has American English spellings. Do not use contractions.

← Previous revision		Revision as of 01:27, 21 April 2025
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	{{See also\|Java (programming language)#Syntax}}		{{See also\|Java (programming language)#Syntax}}
	{{More footnotes\|date=January 2014}}		{{More footnotes\|date=January 2014}}
			{{Use mdy dates\|date=April 2025}}
			{{Use American English\|date=April 2025}}
	[[File:Java keywords highlighted.svg\|thumb\|300px\|A snippet of Java code with keywords highlighted in bold blue font]]		[[File:Java keywords highlighted.svg\|thumb\|300px\|A snippet of Java code with keywords highlighted in bold blue font]]

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	/* The following line is equivalent to		/* The following line is equivalent to
	* java.util.Random random = new java.util.Random();		* java.util.Random random = new java.util.Random();
	* It would~~'ve~~ been incorrect without the import.		* It would have been incorrect without the import.
	*/		*/
	Random random = new Random();		Random random = new Random();
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	! 2		! 2
	\| style="border-bottom-style: none" \| <code>++</code> <code>--</code>		\| style="border-bottom-style: none" \| <code>++</code> <code>--</code>
	\| style="border-bottom-style: none" \| Postfix increment and decrement<ref>{{Cite web\|title = Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url = http://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html\|website = docs.oracle.com\|access-date = ~~2015-06-~~16\|publisher = Oracle and/or its affiliates}}</ref>		\| style="border-bottom-style: none" \| Postfix increment and decrement<ref>{{Cite web\|title = Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url = http://docs.oracle.com/javase/tutorial/java/nutsandbolts/operators.html\|website = docs.oracle.com\|access-date = June 16, 2015\|publisher = Oracle and/or its affiliates}}</ref>
	\|-		\|-
	! rowspan=5\| 3		! rowspan=5\| 3
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	====<code>switch</code> statement====		====<code>switch</code> statement====
	[[Switch statement]]s in Java can use <code>byte</code>, <code>short</code>, <code>char</code>, and <code>int</code> (not <code>long</code>) primitive data types or their corresponding wrapper types. Starting with J2SE 5.0, it is possible to use [[Enumerated type\|enum types]]. Starting with Java SE 7, it is possible to use Strings.<ref>{{Cite web\|title=The switch Statement (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url=https://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html\|access-date=~~2021-08-~~15\|website=docs.oracle.com}}</ref> Other [[reference type]]s cannot be used in <code>switch</code> statements.		[[Switch statement]]s in Java can use <code>byte</code>, <code>short</code>, <code>char</code>, and <code>int</code> (not <code>long</code>) primitive data types or their corresponding wrapper types. Starting with J2SE 5.0, it is possible to use [[Enumerated type\|enum types]]. Starting with Java SE 7, it is possible to use Strings.<ref>{{Cite web\|title=The switch Statement (The Java™ Tutorials > Learning the Java Language > Language Basics)\|url=https://docs.oracle.com/javase/tutorial/java/nutsandbolts/switch.html\|access-date=August 15, 2021\|website=docs.oracle.com}}</ref> Other [[reference type]]s cannot be used in <code>switch</code> statements.

	Possible values are listed using <code>case</code> labels. These labels in Java may contain only constants (including enum constants and string constants). Execution will start after the label corresponding to the expression inside the brackets. An optional <code>default</code> label may be present to declare that the code following it will be executed if none of the case labels correspond to the expression.		Possible values are listed using <code>case</code> labels. These labels in Java may contain only constants (including enum constants and string constants). Execution will start after the label corresponding to the expression inside the brackets. An optional <code>default</code> label may be present to declare that the code following it will be executed if none of the case labels correspond to the expression.
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	If no <code>catch</code> block matches the type of the thrown exception, the execution of the outer block (or method) containing the <code>try</code> ... <code>catch</code> statement is discontinued, and the exception is passed up and outside the containing block (or method). The exception is propagated upwards through the [[call stack]] until a matching <code>catch</code> block is found within one of the currently active methods. If the exception propagates all the way up to the top-most <code>main</code> method without a matching <code>catch</code> block being found, a textual description of the exception is written to the standard output stream.		If no <code>catch</code> block matches the type of the thrown exception, the execution of the outer block (or method) containing the <code>try</code> ... <code>catch</code> statement is discontinued, and the exception is passed up and outside the containing block (or method). The exception is propagated upwards through the [[call stack]] until a matching <code>catch</code> block is found within one of the currently active methods. If the exception propagates all the way up to the top-most <code>main</code> method without a matching <code>catch</code> block being found, a textual description of the exception is written to the standard output stream.

	The statements within the <code>finally</code> block are always executed after the <code>try</code> and <code>catch</code> blocks, whether or not an exception was thrown and even if a <code>return</code> statement was reached. Such blocks are useful for providing ~~clean-up~~ code that is guaranteed to always be executed.		The statements within the <code>finally</code> block are always executed after the <code>try</code> and <code>catch</code> blocks, whether or not an exception was thrown and even if a <code>return</code> statement was reached. Such blocks are useful for providing cleanup code that is guaranteed to always be executed.

	The <code>catch</code> and <code>finally</code> blocks are optional, but at least one or the other must be present following the <code>try</code> block.		The <code>catch</code> and <code>finally</code> blocks are optional, but at least one or the other must be present following the <code>try</code> block.
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	</syntaxhighlight>		</syntaxhighlight>

	Lambda's parameters types ~~don't~~ have to be fully specified and can be inferred from the interface it implements. Lambda's body can be written without a body block and a <code>return</code> statement if it is only an expression. Also, for those interfaces which only have a single parameter in the method, round brackets can be omitted.<ref>{{Cite web\|title=Lambda Expressions (The Java™ Tutorials > Learning the Java Language > Classes and Objects)\|url=https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html\|access-date=2021~~-08-08~~\|website=docs.oracle.com}}</ref>		Lambda's parameters types do not have to be fully specified and can be inferred from the interface it implements. Lambda's body can be written without a body block and a <code>return</code> statement if it is only an expression. Also, for those interfaces which only have a single parameter in the method, round brackets can be omitted.<ref>{{Cite web\|title=Lambda Expressions (The Java™ Tutorials > Learning the Java Language > Classes and Objects)\|url=https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html\|access-date=August 8, 2021\|website=docs.oracle.com}}</ref>

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">
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	====Default methods====		====Default methods====

	Java SE 8 introduced default methods to interfaces which allows developers to add new methods to existing interfaces without breaking compatibility with the classes already implementing the interface. Unlike regular interface methods, default methods have a body which will get called in the case if the implementing class ~~doesn't~~ override it.		Java SE 8 introduced default methods to interfaces which allows developers to add new methods to existing interfaces without breaking compatibility with the classes already implementing the interface. Unlike regular interface methods, default methods have a body which will get called in the case if the implementing class does not override it.

	<syntaxhighlight lang="java">		<syntaxhighlight lang="java">
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	* {{cite book \|last1=Naughton \|first1=Patrick \|author1-link=Patrick Naughton \|last2=Schildt \|first2=Herbert \|author2-link=Herbert Schildt \|year=1999 \|title=Java 2: The Complete Reference \|edition=3rd \|publisher=The McGraw-Hill Companies \|isbn=0-07-211976-4}}		* {{cite book \|last1=Naughton \|first1=Patrick \|author1-link=Patrick Naughton \|last2=Schildt \|first2=Herbert \|author2-link=Herbert Schildt \|year=1999 \|title=Java 2: The Complete Reference \|edition=3rd \|publisher=The McGraw-Hill Companies \|isbn=0-07-211976-4}}
	* {{cite book \|last1=Vermeulen \|last2=Ambler \|last3=Bumgardner \|last4=Metz \|last5=Misfeldt \|last6=Shur \|last7=Thompson \|year=2000 \|title=The Elements of Java Style \|url-access=registration \|url=https://archive.org/details/elementsofjavast00verm \|publisher=Cambridge University Press \|isbn=0-521-77768-2}}		* {{cite book \|last1=Vermeulen \|last2=Ambler \|last3=Bumgardner \|last4=Metz \|last5=Misfeldt \|last6=Shur \|last7=Thompson \|year=2000 \|title=The Elements of Java Style \|url-access=registration \|url=https://archive.org/details/elementsofjavast00verm \|publisher=Cambridge University Press \|isbn=0-521-77768-2}}
	* {{cite book \|last1=Gosling \|first1=James \|author1-link=James Gosling \|last2=Joy \|first2=Bill \|author2-link=Bill Joy \|last3=Steele \|first3=Guy \|author3-link=Guy L. Steele Jr. \|last4=Bracha \|first4=Gilad \|year=2005 \|title=Java Language Specification \|edition=3rd \|url=http://java.sun.com/docs/books/jls/ \|publisher=Addison-Wesley Professional \|access-date=2008~~-12-03~~}}		* {{cite book \|last1=Gosling \|first1=James \|author1-link=James Gosling \|last2=Joy \|first2=Bill \|author2-link=Bill Joy \|last3=Steele \|first3=Guy \|author3-link=Guy L. Steele Jr. \|last4=Bracha \|first4=Gilad \|year=2005 \|title=Java Language Specification \|edition=3rd \|url=http://java.sun.com/docs/books/jls/ \|publisher=Addison-Wesley Professional \|access-date=December 3, 2008}}
	{{Refend}}		{{Refend}}

2620:101:F000:7C0:0:0:0:25CF at 00:29, 10 April 2025

2025-04-10T00:29:50Z

← Previous revision		Revision as of 00:29, 10 April 2025
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	====java.lang.Object====		====java.lang.Object====
	{{code\|java.lang.Object}} is Java's [[top type]]. ~~Superclass~~ of all classes that do not declare a parent class. All values can be converted to this type, although for primitive values this involves [[Object type (object-oriented programming)#Autoboxing\|autoboxing]].		{{code\|java.lang.Object}} is Java's [[top type]]. It is implicitly the superclass of all classes that do not declare any parent class (thus all classes in Java inherent from <code>Object</code>. All values can be converted to this type, although for primitive values this involves [[Object type (object-oriented programming)#Autoboxing\|autoboxing]].

	====java.lang.String====		====java.lang.String====

129.97.124.133: /* Basics - Java */

2025-04-08T11:46:04Z

Basics - Java

← Previous revision		Revision as of 11:46, 8 April 2025
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	The Java syntax has been gradually extended in the course of numerous major [[JDK]] [[Java version history\|releases]], and now supports abilities such as [[generic programming]] and [[anonymous function]]s (function literals, called lambda expressions in Java). Since 2017, a new JDK version is released twice a year, with each release improving the language incrementally.		The Java syntax has been gradually extended in the course of numerous major [[JDK]] [[Java version history\|releases]], and now supports abilities such as [[generic programming]] and [[anonymous function]]s (function literals, called lambda expressions in Java). Since 2017, a new JDK version is released twice a year, with each release improving the language incrementally.

	==Basics ~~- Java~~==		==Basics==

	===Identifier===		===Identifier===

129.97.124.133: /* Keywords */

2025-04-08T11:25:44Z

Keywords

Show changes

Saurav5421: Basics- Java

2025-04-04T02:42:05Z

Basics- Java

← Previous revision		Revision as of 02:42, 4 April 2025
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	The Java syntax has been gradually extended in the course of numerous major [[JDK]] [[Java version history\|releases]], and now supports abilities such as [[generic programming]] and [[anonymous function]]s (function literals, called lambda expressions in Java). Since 2017, a new JDK version is released twice a year, with each release improving the language incrementally.		The Java syntax has been gradually extended in the course of numerous major [[JDK]] [[Java version history\|releases]], and now supports abilities such as [[generic programming]] and [[anonymous function]]s (function literals, called lambda expressions in Java). Since 2017, a new JDK version is released twice a year, with each release improving the language incrementally.

	==Basics==		==Basics - Java==

	===Identifier===		===Identifier===

129.97.124.174: /* See also */

2025-02-27T04:23:11Z

Citation bot: Removed parameters. | Use this bot. Report bugs. | Suggested by Z. Patterson | #UCB_toolbar

2024-12-29T04:25:57Z

Removed parameters. | Use this bot. Report bugs. | Suggested by Z. Patterson | #UCB_toolbar

← Previous revision		Revision as of 04:25, 29 December 2024
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	{{Refbegin}}		{{Refbegin}}
	* {{cite book \|last1=Naughton \|first1=Patrick \|author1-link=Patrick Naughton \|last2=Schildt \|first2=Herbert \|author2-link=Herbert Schildt \|year=1999 \|title=Java 2: The Complete Reference \|edition=3rd \|publisher=The McGraw-Hill Companies \|isbn=0-07-211976-4}}		* {{cite book \|last1=Naughton \|first1=Patrick \|author1-link=Patrick Naughton \|last2=Schildt \|first2=Herbert \|author2-link=Herbert Schildt \|year=1999 \|title=Java 2: The Complete Reference \|edition=3rd \|publisher=The McGraw-Hill Companies \|isbn=0-07-211976-4}}
	* {{cite book \|last1=Vermeulen ~~\|first1=~~ \|last2=Ambler ~~\|first2=~~ \|last3=Bumgardner ~~\|first3=~~ \|last4=Metz ~~\|first4=~~ \|last5=Misfeldt ~~\|first5=~~ \|last6=Shur ~~\|first6=~~ \|last7=Thompson ~~\|first7=~~ \|year=2000 \|title=The Elements of Java Style \|url-access=registration \|url=https://archive.org/details/elementsofjavast00verm \|publisher=Cambridge University Press \|isbn=0-521-77768-2}}		* {{cite book \|last1=Vermeulen \|last2=Ambler \|last3=Bumgardner \|last4=Metz \|last5=Misfeldt \|last6=Shur \|last7=Thompson \|year=2000 \|title=The Elements of Java Style \|url-access=registration \|url=https://archive.org/details/elementsofjavast00verm \|publisher=Cambridge University Press \|isbn=0-521-77768-2}}
	* {{cite book \|last1=Gosling \|first1=James \|author1-link=James Gosling \|last2=Joy \|first2=Bill \|author2-link=Bill Joy \|last3=Steele \|first3=Guy \|author3-link=Guy L. Steele Jr. \|last4=Bracha \|first4=Gilad \|year=2005 \|title=Java Language Specification \|edition=3rd \|url=http://java.sun.com/docs/books/jls/ \|publisher=Addison-Wesley Professional \|access-date=2008-12-03}}		* {{cite book \|last1=Gosling \|first1=James \|author1-link=James Gosling \|last2=Joy \|first2=Bill \|author2-link=Bill Joy \|last3=Steele \|first3=Guy \|author3-link=Guy L. Steele Jr. \|last4=Bracha \|first4=Gilad \|year=2005 \|title=Java Language Specification \|edition=3rd \|url=http://java.sun.com/docs/books/jls/ \|publisher=Addison-Wesley Professional \|access-date=2008-12-03}}
	{{Refend}}		{{Refend}}

Kvng: WP:ADOPTYPO boolean -> Boolean

2024-11-14T00:42:28Z

WP:ADOPTYPO boolean -> Boolean

← Previous revision		Revision as of 00:42, 14 November 2024
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	An identifier cannot:		An identifier cannot:
	* Start with a digit.		* Start with a digit.
	* Be equal to a reserved keyword, null literal or [[Boolean data type\|~~boolean~~]] literal.		* Be equal to a reserved keyword, null literal or [[Boolean data type\|Boolean]] literal.

	===Keywords===		===Keywords===
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	==Primitive types==		==Primitive types==
	Primitive types in Java include integer types, floating-point numbers, [[UTF-16]] code units and a ~~boolean~~ type. There are no unsigned types in Java except <code>char</code> type, which is used to represent UTF-16 code units. The lack of unsigned types is offset by introducing unsigned right shift operation (<code>>>></code>), which is not present in C++. Nevertheless, criticisms have been leveled about the lack of compatibility with C and C++ this causes.<ref>{{cite web\|url=http://darksleep.com/player/JavaAndUnsignedTypes.html\|first=Sean\|last=Owens\|title=Java and unsigned int, unsigned short, unsigned byte, unsigned long, etc. (Or rather, the lack thereof)}}</ref> <!-- This is a terrible citation. If you have a better one, use it. -->		Primitive types in Java include integer types, floating-point numbers, [[UTF-16]] code units and a Boolean type. There are no unsigned types in Java except <code>char</code> type, which is used to represent UTF-16 code units. The lack of unsigned types is offset by introducing unsigned right shift operation (<code>>>></code>), which is not present in C++. Nevertheless, criticisms have been leveled about the lack of compatibility with C and C++ this causes.<ref>{{cite web\|url=http://darksleep.com/player/JavaAndUnsignedTypes.html\|first=Sean\|last=Owens\|title=Java and unsigned int, unsigned short, unsigned byte, unsigned long, etc. (Or rather, the lack thereof)}}</ref> <!-- This is a terrible citation. If you have a better one, use it. -->

	{\| class="wikitable"		{\| class="wikitable"

2601:681:577E:8C80:DC2F:3B2:DBA5:795D: `5.` = (double)5

2024-10-26T04:27:51Z

`5.` = (double)5

← Previous revision		Revision as of 04:27, 26 October 2024
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	\|-		\|-
	!rowspan="2" \| double		!rowspan="2" \| double
	\|{{mono\|23.5D}}, {{mono\|.5}}, {{mono\|1.72E3D}} (decimal fraction with an optional exponent indicator, followed by optional {{mono\|D}})		\|{{mono\|23.5D}}, {{mono\|.5}}, {{mono\|5.}}, {{mono\|1.72E3D}} (decimal fraction with an optional exponent indicator, followed by optional {{mono\|D}})
	\|-		\|-
	\|{{mono\|0x.5FP0}}, {{mono\|0x.5P-6D}} ({{mono\|0x}} followed by a hexadecimal fraction with a mandatory exponent indicator and an optional suffix {{mono\|D}})		\|{{mono\|0x.5FP0}}, {{mono\|0x.5P-6D}} ({{mono\|0x}} followed by a hexadecimal fraction with a mandatory exponent indicator and an optional suffix {{mono\|D}})

← Previous revision		Revision as of 04:23, 27 February 2025
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	{{Portal\|Computer programming}}		{{Portal\|Computer programming}}
	* [[Java Platform, Standard Edition]]		* [[Java Platform, Standard Edition]]
			* [[C Sharp syntax]]
			* [[C++ syntax]]
			* [[C syntax]]

	==References==		==References==