Java String Variable: Difference between revisions
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=== 2011 === | === 2011 === | ||
* http://docs.oracle.com/javase/7/docs/api/java/lang/String.html | * http://docs.oracle.com/javase/7/docs/api/java/lang/String.html | ||
** QUOTE: The String class represents character strings. All string literals in Java programs, such as "abc", are implemented as instances of this class. <P> Strings are constant; their values cannot be changed after they are created. String buffers support mutable strings. Because String objects are immutable they can be shared. <P> For example: <BR> <code>String str = "abc";</code> <BR> is equivalent to: <BR> <code>char data[] = {'a', 'b', 'c'};<BR>String str = new String(data);</code> <P> Here are some more examples of how strings can be used: <BR> <code>System.out.println("abc"); <BR> String cde = "cde"; <BR> System.out.println("abc" + cde); <BR> String c = "abc".substring(2,3); <BR> String d = cde.substring(1, 2);</code> | ** QUOTE: The String class represents character strings. All string literals in Java programs, such as "abc", are implemented as instances of this class. <P> Strings are constant; their values cannot be changed after they are created. String buffers support mutable strings. Because String objects are immutable they can be shared. <P> For example: <BR> <code>String str = "abc";</code> <BR> is equivalent to: <BR> <code>char data[] = {'a', 'b', 'c'};<BR>String str = new String(data);</code> <P> Here are some more examples of how strings can be used: <BR> <code>System.out.println("abc"); <BR> String cde = "cde"; <BR> System.out.println("abc" + cde); <BR> String c = "abc".substring(2,3); <BR> String d = cde.substring(1, 2);</code> | ||
** Method Summary <table border=1> | ** Method Summary <table border=1> | ||
<tr><td><B>Modifier and Type <td><B>Method<td><B>Description</B> | <tr><td><B>Modifier and Type <td><B>Method<td><B>Description</B> |
Revision as of 00:29, 19 August 2021
See: Java Variable, String Variable, String Datatype, Perl String Variable, Java Array Variable.
References
2011
- http://docs.oracle.com/javase/7/docs/api/java/lang/String.html
- QUOTE: The String class represents character strings. All string literals in Java programs, such as "abc", are implemented as instances of this class.
Strings are constant; their values cannot be changed after they are created. String buffers support mutable strings. Because String objects are immutable they can be shared.
For example:
String str = "abc";
is equivalent to:
char data[] = {'a', 'b', 'c'};
String str = new String(data);Here are some more examples of how strings can be used:
System.out.println("abc");
String cde = "cde";
System.out.println("abc" + cde);
String c = "abc".substring(2,3);
String d = cde.substring(1, 2); - Method Summary
Modifier and Type Method Description ... ... ... int length() Returns the length of this string. ... ... ...
- QUOTE: The String class represents character strings. All string literals in Java programs, such as "abc", are implemented as instances of this class.