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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