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For example, the following are valid variable names: | For example, the following are valid variable names: | ||
− | + | x foo | |
− | + | x_y_z BaR | |
− | + | _foo bar45 | |
− | + | _1 baz | |
− | + | thisIsAReallyLongVariableName | |
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The following, however, are not valid variable names: | The following, however, are not valid variable names: | ||
− | + | 2 $apples | |
− | + | 5foo double | |
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Additionally, the name of a variable cannot be a {{C|reserved keywords|reserved word}}. For example, a variable named <code>while</code> or <code>register</code> is illegal. | Additionally, the name of a variable cannot be a {{C|reserved keywords|reserved word}}. For example, a variable named <code>while</code> or <code>register</code> is illegal. |