Alone Study-2

//수치 계싼에 사용하는 연산자
public class Study2 {
 public static void main(String [] args) {
  System.out.println("5+5는"+(5+5)+"입니다.");
  System.out.println("5-5는"+(5-5)+"입니다.");
  System.out.println("5*5는"+(5*5)+"입니다.");
  System.out.println("5/5는"+(5/5)+"입니다.");
 }

}

 

//비교 연산자
public class Study2 {
 public static void main(String [] args) {
  int a = 10, b = 20;
  
  System.out.println("a = "+a+" b = "+b);
  System.out.println("a < b --- "+(a<b));
  System.out.println("a > b --- "+(a>b));
  System.out.println("a == b --- "+(a==b));
  System.out.println("a = b --- "+(a=b));
  
 }

}

 

//논리형
public class Study2 {
 public static void main(String [] args) {
  int a = 10, b =20;
  boolean c, d, e;
  
  c = a < b;
  d = a > b;
  e = a == b;
  
  System.out.println("a = "+a+" b = "+b);
  System.out.println("a < b --- "+c);
  System.out.println("a > b --- "+d);
  System.out.println("a = b --- "+e);
 }
}

 

//조건 연산자
public class Study2 {
 public static void main(String [] args) {
  String right = "맞음", wrong = "틀림";
  boolean value;
  
  value = true;
  String answer = value ? right : wrong;
  System.out.println(answer);
  
  value = false;
  answer = value ? right : wrong;
  System.out.println(answer);
 }
}

 

//캐스트연산자
public class Study2 {
 public static void main(String [] args) {
  System.out.println("3 / 2 = " + (float)3/2);
  System.out.println("3 / 2 = " + 3/(float)2);
 }
}