我需要用 for 循环和用户输入制作一个金字塔

Question

好的，我需要使用 for 循环制作一个金字塔，我需要用户输入三角形的底。我已经完成了大部分(我认为(，但我需要一些帮助，因为输出没有给出它的正确基础(底层(，它给出的比输入少两个 *......有人可以帮我解决这个问题吗？这是我到目前为止的代码：

import java.util.Scanner;
public class Client {
    public static void pyramid(){
        int x;
        Scanner console = new Scanner(System.in);
        System.out.println("What is the base?: ");
        x = console.nextInt();
        for (int i=1; i < x; i += 2){
            for (int k=0; k < (4 - i / 2); k++){
                System.out.print(" ");
            }
            for (int j=0; j< i ; j++){
                System.out.print("*");
            }
            System.out.println("");
        }
    }
    public static void main(String[] args) {
        pyramid();
    }
}

Answer 1

试试这个;

    public static void pyramid() {
        int x;
        Scanner console = new Scanner(System.in);
        System.out.println("What is the base?: ");
        x = console.nextInt();
        for (int i = 1; i <= x; i=i+2) {
            int spaceCount = (x - i)/2;  // how many space I will put for 5 firstly 2 spaces, then 1 space
            for(int j = 0; j< x; j++) {
                if(j < spaceCount || j >= (x - spaceCount)) {
                    System.out.print(" "); // put spaces before *
                } else {
                    System.out.print("*");
                }
            }
            System.out.println(); 
        }
    }

输出为 5;

What is the base?: 
5
  *  
 *** 
*****