Java 嵌套 while 循环

Question

我需要嵌套的 while 循环来打印，以便每次内部循环“I”完成一次迭代时，外部循环 k 都会进行一次递减迭代。 K 必须从 5 开始数到 1，我必须从 0 开始并以 2 数到 10。所以输出看起来像这样:

K = 5 I = 0
K = 5 I = 2
K = 5 I = 4
K = 5 I = 6
K = 5 I = 8
K = 5 I = 10
K = 4 I = 0

我已经被难住了几个小时，并尝试了所有我能想到的让它工作的方法。有人可以帮忙吗？

public class Task1 {
public static int i = 0;
public static int k = 5;

public static void Display(){

    while(k > 1){

        while(i >=10){
            i = i+2;
            System.out.println("K = " + k + " I = " + i);

        }


        if (i >= 10){
            k=k-1;
        }
    }
}


public static void main(String[] args) {
    // TODO Auto-generated method stub
    Display();

}
    }

Answer 1

有一些错误。关注评论

while(k >= 1){                                        // Make it >= instead of >

    i = 0;                                            // reset i
    while(i <=10){                                    // Make it i<= (less than)
        System.out.println("K = " + k + " I = " + i); //print before incrementing
        i = i+2;

    }

其余代码是正确的。并且输出符合预期

K = 5 I = 0
K = 5 I = 2
K = 5 I = 4
K = 5 I = 6
K = 5 I = 8
K = 5 I = 10
K = 4 I = 0
K = 4 I = 2
K = 4 I = 4
K = 4 I = 6
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