[JAVA] ||, && 사용 예제

package dayday3; 

public class test4 { 
public static void main(String[] args) { 
// TODO Auto-generated method stub 
int v1 = 10; 
int v2 = 20; 
System.out.println(v1 == 10 && v2 == 30); 
System.out.println(v1 == 10 || v2 == 30); 

//! 
System.out.println(!(v1 == 10)); 

System.out.println(10 < 20 || 20 != 20); //20 != 20  is a dead code, 10<20 already true 

System.out.println(10 > 20 && 20 != 20); //a dead code 
} 



}