NOT, will cause the opposite of the normal situation

package ArithmeticOperations;

public class Not {
	
	void start() {
		boolean result = !(1<7 && 1<8);
	}

	public static void main(String[] args) {
		new Not().start();
	}
}

Result will be: false

Compare this result with the result on the page AND.

GENERAL TIP

You can best compare at most 2 values

that is best for:

• the cleanness of your code;
  • for other people it will be harder to read your code
• the effectiveness of your code;
  • sometimes will a statement with 3 operands ( .. && .. && .. ), not successfully be executed. It shows false or true when this is not the case.