import java.util.Scanner;
public class Sample {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
Area a = new Area();
boolean run = true;
while(run) {
System.out.println("--------------------------------------------");
System.out.println("1. 정사각형 2. 직사각형 3. 삼각형 4. 종료");
System.out.println("-------------------------------------------");
System.out.print("선택>");;
int menu = s.nextInt();
switch(menu) {
case 1:
System.out.print("한변의 길이 >");
int length= s.nextInt();
System.out.printf("정사각형넓이=%d\n",a.area(length));
break;
case 2:
System.out.print("밑변 >");
int a1= s.nextInt();
System.out.print("높이 >");
int a2= s.nextInt();
System.out.printf("정사각형넓이=%d\n", a.area(a1, a2));
break;
case 3:
System.out.print("밑변 >");
int b1= s.nextInt();
System.out.print("높이 >");
double b2= s.nextDouble();
System.out.printf("삼각형넓이=%.2f\n",a.area(b1, b2));
break;
case 4:
run = false;
System.out.println("프로그램종료");
break;
default:
System.out.println("1~3번을 선택해주세요!");
}
}
}
}
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