java - 嵌套 For 循环动态深度 Java

Question

您好，我是编程新手并已注册到此论坛:)

因此，我创建了一个带有嵌套 for 循环的小程序，它打印出五个数字的所有组合，这些数字的值可以从 0 到 5。使用嵌套 for 循环可以正常工作。但是没有更清洁的解决方案吗？我尝试通过调用 for 循环本身来尝试它，但我的大脑没有得到解决方案.. :(

//my ugly solution
int store1, store2, store3, store4, store5;
        for (int count = 0; count <= 5; count++) {
            store1 = count;
            for (int count2 = 0; count2 <= 5; count2++) {
                store2 = count2;
                for (int count3 = 0; count3 <= 5; count3++) {
                    store3 = count3;
                    for (int count4 = 0; count4 <= 5; count4++) {
                        store4 = count4;
                        System.out
                                .println(store1 + " " + store2 + " " + store4);
                }
 //I'm trying around with something like this 
    void method1() {
        for (int count = 0; count <= 5; count++) {
                    list.get(0).value = count;
            count++;
            method2();
        }
    }
    void method2() {
        for (int count = 0; count <= 5; count++) {
                    list.get(1).value = count;
            count++;
            method1();
        }
    }

Answer 1

通常当人们尝试使用递归或函数时，使用循环更简单或更快。然而，在这种情况下，递归是与循环结合使用的更简单的选择。

public static void method(List<Integer> list, int n, int m) {
   if (n < 0) {
       process(list);
   } else {
      for(int i = 0; i < m; i++) {
         list.set(n, i);
         method(list, n-1, m);
      }
   }
}