Example Lab 3.1

[1] Question :

(Checking whether a number is odd)
Write a program that reads an integer and checks whether it is odd.

[2] Example Code :

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     // Step 1 : Prompt the input
     Scanner input = new Scanner(System.in);
  
    // Step 2 : Enter an integer
     System.out.print("Enter an integer: ");
     int number = input.nextInt();
  
    // Step 3 : Selection statement + Display Result
    if (___________________ )
        System.out.println("_____________________________");
    else
        System.out.println("_____________________________");


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[3] Answer :

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import java.util.Scanner;
public class Lab3_1 {
   
  public static void main(String[] args) {
  
                  // Step 1 : Prompt the input
                 Scanner input = new Scanner(System.in);
   
                  // Step 2 : Enter an integer
                 System.out.print("Enter an integer: ");
                 int number = input.nextInt();   
                 // Step 3 : Selection statement + Display Result
                 if (number % 2 != 0 )
                        System.out.println("Is "+ number + " an odd number? True");
                 else
                        System.out.println("Is "+ number + " an odd number? False");  }
}

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[4] Output :  

Enter an integer: 17
Is 17 an odd number? True

Enter an integer: 500
Is 500 an odd number? false