Java 程式以列印半菱形星形圖案
在本文中,我們將瞭解如何列印半菱形星形圖案。該圖案透過使用多個 for 迴圈和 print 語句來形成。
以下是相同示例的演示 −
輸入
假設我們的輸入是 −
Enter the number of rows : 8
輸出
所需輸出為 −
The half diamond pattern : * ** *** **** ***** ****** ******* ******** ******* ****** ***** **** *** ** *
演算法
Step 1 - START Step 2 - Declare three integer values namely i, j and my_input Step 3 - Read the required values from the user/ define the values Step 4 - We iterate through two nested 'for' loops 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
在這裡,輸入是由使用者根據提示輸入的。您可以在我們的 編碼基礎工具
中即時嘗試此示例。
import java.util.Scanner;
public class HalfDiamond{
public static void main(String []args){
int i, j, 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.print("The half diamond pattern : ");
for (i = 0; i < my_input; i++){
for (j = 0; j < i + 1; j++)
System.out.print("*");
System.out.print("\n");
}
for (i = 1; i < my_input; i++){
for (j = i; j < my_input; j++)
System.out.print("*");
System.out.print("\n");
}
}
}輸出
Required packages have been imported A reader object has been defined Enter the number of rows : 8 The half diamond pattern : * ** *** **** ***** ****** ******* ******** ******* ****** ***** **** *** ** *
示例 2
在這裡,整數已預先定義,並且其值在控制檯上被訪問和顯示。
public class HalfDiamond{
public static void main(String []args){
int i, j, my_input;
my_input = 8;
System.out.println("The number of rows is defined as " +my_input);
System.out.print("The half diamond pattern : ");
for (i = 0; i < my_input; i++){
for (j = 0; j < i + 1; j++)
System.out.print("*");
System.out.print("\n");
}
for (i = 1; i < my_input; i++){
for (j = i; j < my_input; j++)
System.out.print("*");
System.out.print("\n");
}
}
}輸出
The number of rows is defined as 8 The half diamond pattern : * ** *** **** ***** ****** ******* ******** ******* ****** ***** **** *** ** *
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