Java嵌套循环

public class Test {
    public static void main(String[] args) { 
        for (int i=1; i <=5; i++) {
            for(int j=1; j<=5; j++){
                System.out.print(i+"  ");
            }
            System.out.println();
        }
    }
}

public class Test {
    public static void main(String[] args) { 
        for (int i = 1; i < 10; i++) { // i是一个乘数
            for (int j = 1; j <= i; j++) { // j是另一个乘数
                System.out.print(j + "*" + i + "=" + (i * j < 10 ? (" " + i * j) : i * j) + "  ");
            }
            System.out.println();
        }
    }
}