How do I use the boolean negation (!) operator in Java?

By Wayan in Basic, Core API 0 Comment

The ! operator is a logical compliment operator. The operator inverts the value of a boolean expression.

package org.kodejava.basic;

public class NegationOperator {
    public static void main(String[] args) {
        // negate the result of boolean expressions
        boolean negate = !(2 < 3);
        boolean value = !false;

        System.out.println("result: " + negate);
        System.out.println("value : " + value);
    }
}

Here is the result of the program:

result: false
value : true
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