使用三角形的形式打印乘法表的 Java 程序


在本文中,我们将了解如何以三角形的形式打印乘法表。使用循环可以实现以三角形的形式打印乘法表。

以下是相同的演示 −

输入

假设我们的输入是 −

Input : 7

输出

期望的输出应为 −

The result is :
1
2 4
3 6 9
4 8 12 16
5 10 15 20 25
6 12 18 24 30 36
7 14 21 28 35 42 49

算法

Step 1 - START
Step 2 - Declare 3 integer values namely my_input, I and j
Step 3 - Read the required values from the user/ define the values
Step 4 – Using two for-loops, iterate from 1 to my_input value and calculate the i*j value.
Step 5- Display the result
Step 6- Stop

示例 1

此处,用户根据提示输入。您可以在我们的代码实战工具 run button中对本示例进行现场测试。

import java.util.Scanner;
import java.util.*;
public class MultiplicationTableTrianglePattern {
   public static void main(String args[]){
      int my_input, i, j;
      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.println("Enter a number ");
      my_input = my_scanner.nextInt();
      for (i = 1; i <= my_input; i++) {
         for (j = 1; j <= i; j++) {
            System.out.print(i * j + " ");
         }
         System.out.println();
      }
   }
}

输出

Required packages have been imported
A reader object has been defined
Enter a number
7
1
2 4
3 6 9
4 8 12 16
5 10 15 20 25
6 12 18 24 30 36
7 14 21 28 35 42 49

示例 2

此处,整数已预先定义,并且可以在控制台中访问和显示其值。

import java.util.*;
public class MultiplicationTableTrianglePattern {
   public static void main(String args[]){
      int my_input, i, j;
      System.out.println("Required packages have been imported");
      my_input = 7;
      System.out.println("The number is defined as " +my_input );
      for (i = 1; i <= my_input; i++) {
         for (j = 1; j <= i; j++) {
            System.out.print(i * j + " ");
         }
         System.out.println();
      }
   }
}

输出

Required packages have been imported
The number is defined as 7
1
2 4
3 6 9
4 8 12 16
5 10 15 20 25
6 12 18 24 30 36
7 14 21 28 35 42 49

更新于: 21-Feb-2022

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