javafor循环打出平行四边形
时间: 2023-12-31 08:24:17 浏览: 32
以下是两种使用Java的for循环打印平行四边形的例子:
1. 使用内层循环控制列数的方法:
```java
import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("请输入row行数:");
int row = input.nextInt();
for (int i = row; i >= 1; i--) {
for (int j = 1; j <= i; j++) {
System.out.print("* ");
}
System.out.println();
}
System.out.println("Game Over!!!");
}
}
```
2. 使用*的个数(列数)为row + 1 - i的方法:
```java
import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("请输入row行数:");
int row = input.nextInt();
for (int i = 1; i <= row; i++) {
for (int j = 1; j <= row + 1 - i; j++) {
System.out.print("* ");
}
System.out.println();
}
System.out.println("Game Over!!!");
}
}
```