Java程序使用for循环画一个正方形？

Question

给定:

public static void printTriangle(int sideLength) 
{
    for (int i = 0; i <= sideLength; i++) {
        for (int j = 0; j < i; j++){
            System.out.print("[]");
        }
        System.out.println();
    }
}

如何修改代码以打印 sideLength = 3 的正方形？

[][][]
[][][]
[][][]

Answer 1

像这样:

public static void printSquare(int sideLength) 
{
    for (int i = 0; i < sideLength; i++) {
        for (int j = 0; j < sideLength; j++) {
            System.out.print("[]");
        }
        System.out.println();
    }
}