求大佬帮忙解决一下这个问题[face]emoji:056.png[/face]

Question

求大佬帮忙解决一下这个问题[face]emoji:056.png[/face]

Answer 1

public class test {
    public static void main(String[] args) {
        for (int i = 1; i <= 4; i++) {
                    for (int j = 1; j <= (4-i) ; j++) {
                    System.out.print(" ");
                }
                for (int j = 1; j <= (2*i-1); j++) {
                    System.out.print("*");
                }
                System.out.println();
            }
        for (int i = (4-1); i >0; i--) {
                for (int j = 0; j < (4-i) ; j++) {
                    System.out.print(" ");
                }
                for (int j = 0; j < (2*i-1); j++) {	
                    System.out.print("*");
                }
                System.out.println();
            }
    }
}

是否符合要求