Java syntax: Difference between revisions

Revision as of 14:49, 24 May 2021

Revision as of 01:48, 29 May 2021

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====<code>switch</code> statement====

[[Switch statement]]s in Java can use <code>byte</code>, <code>short</code>, <code>char</code>, and <code>int</code> (note: 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. Other [[reference typestype]]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.