奇怪的 switch() case 题目

如果想对任何输入的数字都好用也不需要嵌套那么复杂了，以下这样就可以啊！

        int x = 10;  
        x=(x<1)?0:x;
        switch (x) {   
        case 0:
    System.out.println("x is less than 1"); 
    break;
            case 1:  
            System.out.println("x is 1");  
            break;         
            case 2:
            case 3: 
            case 4: 
            System.out.println("x is 2,3,4");  
            break;
            default:
            System.out.println("x is greater than 4");        
        }

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凑凑热闹，我这样写的
switch(x>4?5:(x<1?0:x)){
case 0:System.out.println("x小于1"); break;
case 1:System.out.println("x=1"); break;
case 2:
case 3:
case 4:System.out.println("x是2,3,4"); break;
case 5:System.out.println("x大于4"); break;
}

呵呵 你们都真聪明啊

这时候脑子乱了，短的还挺好读懂，但判断次数是不是多了。

好像最简洁咯

都不对,题目很明显只让用switch 而不能用其他的判断比如if\3元表达式(for 和while应该也不算)
看看这个怎么样:

public class Switch {
	public static void main(String[] args) {
		
		int x =5;
		try {	
			switch ((x-1)/x) {
			case 1:
			case 2:	
				System.out.println("x is less than 1");
				break;
			default:
				switch ((x+4)/x) {
					case 5:
						System.out.println("x is 1");
						break;
					case 3:
					case 2:
						System.out.println("x is 2,3,4");
						break;
					case 1:
						System.out.println("x is greater than 4");
						break;
				}
				break;
			}
		} catch (Exception e) {
			System.out.println("x is less than 1");
		}
	}
}

int x = 5;
int y = x < 1 ? -1 : x == 1 ? 1 : x == 2 || x == 3 || x == 4 ? 2
: x > 4 ? 5 : 0;
switch (y) {
case 0:
System.out.println("非法数字........");
break;
// case int x<1:
case -1:
System.out.println("x is less than 1");
break;

// case x==1:
case 1:
System.out.println("x is 1");
break;

// case x<=4:
case 2:
System.out.println("x is 2,3,4");
break;

case 5:
System.out.println("x is greater than 4");
break;
}

不要为了简洁而搞得晦涩难懂，不值得

 

 

应该考虑0的吧
public static void testCase(int x) {
switch (x) {

case 1:
System.out.println("is 1");
break;
case 2:
case 3:
case 4:
System.out.println("is 2 3 4");
break;
default:
x = x > 4 ? 5 : -1;
case 5:
System.out.println("big 4");
break;
case 0:
case -1:
System.out.println("less 1");
}
}