编辑代码

class Main {
	public static void main(String[] args) {
        printTri(6);
	}
    public static void printTri(int n){
        for(int i = 1;i <= n; i++){
            for(int j = 0; j < i; j++){
                System.out.print(i + " ");
            }
           System.out.println();
        }
    }
}