Compile-time calculation: Difference between revisions
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Added more explanation about Java's compile time limitations.
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m (Added more explanation about Java's compile time limitations.) |
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=={{header|Java}}==
The Java compiler is able to calculate expressions that contain constant variables
and certain operators during code compilation.
As defined in the Java language specification,
the following operators and expressions may be used for constant expressions:
Unary operators: +, -, ~, !
Multiplicative operators: *, /, %
Additive operators: +, –
Shift operators: <<, >>, >>>
Relational operators: <, <=, >, >=
Equality operators: ==, !=
Bitwise and logical operators: &, ^, |
Conditional-and and the conditional-or operator: &&, ||
Ternary conditional operator: ?:
Parenthesized expressions whose contained expression is a constant expression
Simple names that refer to constant variables
<syntaxhighlight lang="java">
public final class CompileTimeCalculation {
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public static void main(String[] aArgs) {
System.out.println(tenFactorial);
}
private static int tenFactorial = 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1;
}
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<pre>
3628800
</pre>
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