Java 程序用于打印镜像上星三角形图案
在本文中,我们将了解如何打印镜像上星三角形图案。该图案是使用多个 for 循环和 print 语句形成的。
下面展示了演示步骤 −
输入
假设我们的输入为 −
Enter the number of rows : 8
输出
所需的输出为 −
The mirror upper star pattern :
********
*******
******
*****
****
***
**
*算法
Step 1 - START Step 2 - Declare four integer values namely i, j, k and my_input Step 3 - Read the required values from the user/ define the values Step 4 - We iterate through two nested 'for' loops inside a ‘for’ loop to get space between the characters. Step 5 - After iterating through the innermost loop, we iterate through another 'for' loop. This will help print the required character. Step 6 - Now, print a newline to get the specific number of characters in the subsequent lines. Step 7 - Display the result Step 8 - Stop
示例 1
此处,输入是由用户根据提示输入的。您可以在我们的 代码练习工具
中尝试此示例。
import java.util.Scanner;
public class MirrorTriangle{
public static void main(String args[]){
int i, j, k, my_input;
System.out.println("Required packages have been imported");
Scanner my_scanner = new Scanner(System.in);
System.out.println("A reader object has been defined ");
System.out.print("Enter the number of rows : ");
my_input = my_scanner.nextInt();
System.out.println("The mirror upper star pattern: ");
for (i= my_input; i>= 1; i--){
for (j=my_input; j>i;j--){
System.out.print(" ");
}
for (k=1;k<=i;k++){
System.out.print("*");
}
System.out.println("");
}
}
}输出
Required packages have been imported
A reader object has been defined
Enter the number of rows : 8
The mirror upper star pattern:
********
*******
******
*****
****
***
**
*示例 2
此处,此整数已预先定义,并且其值在控制台上进行访问和显示。
public class MirrorTriangle{
public static void main(String args[]){
int i, j, k, my_input;
my_input = 8;
System.out.println("The number of rows is defined as " +my_input);
System.out.println("The mirror upper star pattern: ");
for (i= my_input; i>= 1; i--){
for (j=my_input; j>i;j--){
System.out.print(" ");
}
for (k=1;k<=i;k++){
System.out.print("*");
}
System.out.println("");
}
}
}输出
The number of rows is defined as 8
The mirror upper star pattern:
********
*******
******
*****
****
***
**
*
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