Automatic variable: Difference between revisions

Revision as of 10:22, 26 February 2019

Revision as of 20:49, 9 October 2019

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(Called ''local variables''.)

Similar to C and C++, but there is no <code>auto</code> or <code>register</code> keyword. However, the Java compiler will not allow the usage of a not-explicitly-initialized local variable and will give a compilation error (unlike C and C++ where the compiler will usually only give a warning). The Java standard demands that every local variable must be explicitly initialized before being used.<ref>{{cite web | url=http://java.sun.com/docs/books/jls/third_edition/html/typesValues.html#4.12.5 | title=4.12.5 Initial Values of Variables | publisher=Sun Microsystems | accessdate=2008-10-17}}</ref> This differs from instance variables, which are implicitly initialized with default values (which are <tt>{{samp|0</tt>}} for numbers and <tt>{{samp|null</tt>}} for objects).

===Perl===