2つの数値を交換するJavaプログラム。

この記事では、Javaで2つの数値を交換する方法を理解します。これは一時変数を使用して行われます。

以下は同じのデモンストレーションです-

入力

入力が-

value_1 : 45
value_2 : 70

出力

必要な出力は-

value_1 : 70
value_2 : 45

アルゴリズム

Step 1- Start
Step 2- Declare three integers: value_1, value_2 and temp
Step 3- Read the values
Step 4- Assign value_1 to temporary variable
Step 5- Assign value_2 to value_1
Step 6- Assign temporary variable to value_2
Step 6- Display the two values
Step 7- Stop

例1

ここでは、プロンプトに基づいてユーザーが入力を入力しています。この例は、コーディンググラウンドツールでライブで試すことができます 。

import java.util.Scanner;
public class NumbersSwap{
   public static void main(String[] args){
      int value_1, value_2, my_temp;
      System.out.println("The required packages have been imported");
      Scanner my_scan = new Scanner(System.in);
      System.out.println("A scanner object has been defined ");
      System.out.println("Enter the first number");
      value_1 = my_scan.nextInt();
      System.out.println("Enter the second number");
      value_2 = my_scan.nextInt();
      System.out.println("----Before swap----");
      System.out.println("The first value is " + value_1 + " and the second value is " + value_2 );
      my_temp = value_1;
      value_1 = value_2;
      value_2 = my_temp;
      System.out.println("----After swap----");
      System.out.println("The first value is " + value_1 + " and the second value is " + value_2 );
   }
}

出力

The required packages have been imported
A scanner object has been defined
Enter the first number
112
Enter the second number
34
----Before swap----
The first value is 112 and the second value is 34
----After swap----
The first value is 34 and the second value is 112

例2

public class NumbersSwap{
   public static void main(String[] args){
      int value_1 , value_2, my_temp;
      System.out.println("The required packages have been imported");
      value_1 = 45;
      value_2 = 70;
      System.out.println("----Before swap----");
      System.out.println("The first number is " + value_1 + " and the second number is " + value_2 );
      my_temp = value_1;
      value_1 = value_2;
      value_2 = my_temp;
      System.out.println("----After swap----");
      System.out.println("The first number is " + value_1 + " and the second number is " + value_2 );
   }
}

出力

The required packages have been imported
----Before swap----
The first number is 45 and the second number is 70
----After swap----
The first number is 70 and the second number is 45