Question

java输入树的高度打印圣诞树 我的代码如下 但打印出来的*都不在同一行

public class 圣诞树 { public static void main(String[] args) { int hight; Scanner in=new Scanner(System.in); System.out.println("请输入圣诞树的高度"); hight=in.nextInt(); for(int i=1;i<=hight;i++) { for(int j=1;j<=hight-i;j++ ) { System.out.println(" "); } for(int k=1;k<=2*i-1;k++) { System.out.println("*"); } System.out.println(); } } }
该怎么修改？ 别去复制粘贴

Answer 1

打印 * 号的时候不要用println，用print就行了
println是打印后换行，print则是直接打印

Answer 2

package com.lg.Demo_1;

import java.util.Scanner;

public class Demo_10 {

public static void main(String[] args){

System.out.println("请输入树的高度：");

Scanner sc =new Scanner(System.in);

int a =sc.nextInt();

for (int i = 1; i<=a; i++) {

for (int j2 = a; j2 >=i; j2--) {

System.out.print(" ");

}

for (int j = 1; j <=i; j++) {

System.out.print("*");

}

for (int j1 = 1; j1 <i; j1++) {

System.out.print("*");

}

System.out.println("");

}

if (a%2==0) {

for (int y = 1; y <=(a/2); y++) {

for (float x =a/2; x <=a; x++) {

System.out.print(" ");

}

System.out.print("|");

for (int i1 = 3; i1 <=a; i1++) {

System.out.print("|");

}System.out.print("\n");

}

}else{

for (int y = 1; y <=(a/2); y++) {

for (float x =a/2; x <=a; x++) {

System.out.print(" ");

}

System.out.print("|");

for (int i1 = 3; i1 <a; i1++) {

System.out.print("|");

}

System.out.print("\n");

}

}

}

}

新鲜出炉，无需解释，看图