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Java Exercises: Display the product of two numbers

Java Basic: Exercise-5 with Solution

Write a Java program that takes two numbers as input and display the product of two numbers.

Test Data:
Input first number: 25
Input second number: 5

Pictorial Presentation:

Java: Display the product of two numbers

Sample Solution:

Java Code:

import java.util.Scanner;
 
public class Exercise5 {
 
 public static void main(String[] args) {
  Scanner in = new Scanner(System.in);
   
  System.out.print("Input first number: ");
  int num1 = in.nextInt();
   
  System.out.print("Input second number: ");
  int num2 = in.nextInt();
   
  System.out.println(num1 + " x " + num2 + " = " + num1 * num2);
 }
 
}

Sample Output:

Input first number: 25                                                                                        
Input second number: 5                                                                                        
25 x 5 = 125

Flowchart:

Flowchart: Java exercises: Display the product of two numbers.

Sample Solution:

Java Code:

public class Main
{
  static int x = 25;
  static int y = 5;
 public static void main(String[] args)
  {
   System.out.println(x*y);
   }
}

Sample Output:

125

Flowchart:

Flowchart: Java exercises: Display the product of two numbers.

Java Code Editor:

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Previous: Write a Java program to print the result of the specified operations.
Next: Write a Java program to print the sum (addition), multiply, subtract, divide and remainder of two numbers.

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Java: Tips of the Day

Execution of console commands:

Java allows you to execute console commands directly from code using a class Runtime. It is very important not to forget about exception handling.

For example, let's try to open a PDF file through a Java terminal:

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
  
public class ShellCommandExec {
  
  public static void main(String[] args) {
    String gnomeOpenCommand = "gnome-open //home//user//Documents//MyDoc.pdf";
  
    try {
      Runtime rt = Runtime.getRuntime();
      Process processObj = rt.exec(gnomeOpenCommand);
  
      InputStream stdin = processObj.getErrorStream();
      InputStreamReader isr = new InputStreamReader(stdin);
      BufferedReader br = new BufferedReader(isr);
  
      String myoutput = "";
  
      while ((myoutput=br.readLine()) != null) {
        myoutput = myoutput+"\n";
      }
      System.out.println(myoutput);
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }
}