TQC+ JAVA 209

TQC+ JAVA 209 象限座標

import java.util.*;
public class JPA02 {
    static Scanner keyboard = new Scanner(System.in);
    public static void main(String[] args) {
        test();      
        test();

        test();
        test();
    }
   
    public static void test() {
    float x,y;
    System.out.printf("請輸入x座標:");
    x=keyboard.nextFloat();
    System.out.printf("請輸入y座標:");
    y=keyboard.nextFloat();
    if(x==0 && y==0)
    System.out.printf("(%.2f,%.2f)在原點上%n",x,y);
    if(x>0 && y==0)
    System.out.printf("(%.2f,%.2f)在x軸上%n",x,y);
    if(x==0 && y>0)
    System.out.printf("(%.2f,%.2f)在y軸上%n",x,y);
    if(x>0 && y>0)
    System.out.printf("(%.2f,%.2f)在第一象限%n",x,y);
    if(x<0 && y>0)
    System.out.printf("(%.2f,%.2f)在第二象限%n",x,y);
    if(x<0 && y<0)
    System.out.printf("(%.2f,%.2f)在第三象限%n",x,y);
    if(x>0 && y<0)
    System.out.printf("(%.2f,%.2f)在第四象限%n",x,y);
    }
}