这个Java的代码应该怎么写啊

Question

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Answer 1

public class A {

    public static void main(String[] args) {
        for(int i = 1;i <= 5;i++){
            for(int j = 0;j < i;j++){
                System.out.print("* ");
            }
            System.out.println();
        }
    }
}