LogicalTest

public class LogicalTest {

	public static void main(String[] args) {

		//And, or
		int a=10, b=20;
		
		//Logical AND operator : && 그리고
		System.out.println(b>10 && a>=10); //true  && true  = true
		System.out.println(b>10 && a>10);  //true  && false = false
		System.out.println(b<10 && a>=10); //false && true  = false
		System.out.println(b<10 && a<10);  //false && false = false
		
		//Logical OR operator : || 또는
		System.out.println(b>10 || a>=10); //true  || true  = true
		System.out.println(b>10 || a>10);  //true  || false = true
		System.out.println(b<10 || a>=10); //false || true  = true
		System.out.println(b<10 || a<10);  //false || false = false
		
		//Logical NOT Operator : ! 부정
		System.out.println(!(b>10));  //!true  = false
		System.out.println(!(b<10));  //!false = true
	}

}

 

출력값

true
false
false
false
true
true
true
false
false
true