Basic Java Language: Difference between revisions
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You can declare multiple variables on one line, if you wish: | You can declare multiple variables on one line, if you wish: | ||
<pre> boolean a, b;</pre> | <pre> boolean a, b;</pre> | ||
Also, you can change variables after you already give them a value. | |||
<pre>[v you want to change] = [v you want it to be]</pre> | |||
===Identifiers=== | ===Identifiers=== | ||
There are several rules for the naming of your variables. Identifiers can be named using all the letters from A through Z (capital or lowercase, you choose), numbers 0-9 and underscore _ and the dollar sign $. The first character of the identifier cannot be a number, but it can be a letter, _ or $. | There are several rules for the naming of your variables. Identifiers can be named using all the letters from A through Z (capital or lowercase, you choose), numbers 0-9 and underscore _ and the dollar sign $. The first character of the identifier cannot be a number, but it can be a letter, _ or $. | ||