Print an Integer in Java

In this article, we will understand how to print an integer in Java. It uses the int data type. The int data type is a 32-bit signed two's complement integer. The Minimum value is 2,147,483,648 (-2^31) and the Maximum 2,147,483,647(inclusive) (2^31 -1). Integer is generally used as the default data type for integral values unless there is a concern about memory. The default value is 0.

Input

Suppose our input is

Enter an integer: 45

Output

The desired output would be

The integer is: 45

Algorithm

Step 1- START
Step 2- Prompt the user to enter an integer value/ define the integer value in a variable
Step 3- Read the value
Step 4- Display it on the console
Step 5- STOP

Example 1

Here, the input is being entered by the user based on a prompt. You can try this example live in our coding ground tool .

import java.util.Scanner;
public class PrintInteger {
   public static void main(String[] args) {
      Scanner reader = new Scanner(System.in);
      System.out.println("Required packages have been imported");
      System.out.print("A reader object has been defined ");
      System.out.print("Enter an integer: ");
      int number = reader.nextInt();
      System.out.print("The nextInt method is used to read the integer value ");
      System.out.println("The integer is: " + number);
}
}

Output

Required packages have been imported
A reader object has been defined
Enter an integer: 45
The nextInt method is used to read the integer value
The integer is: 45

Example 2

Here, the integer has been previously defined, and its value is accessed and displayed on the console.

public class PrintInteger {
public static void main(String[] args) {
int number;
number = 45;
System.out.print("The value for integer has been defined ");
System.out.println("The integer value is: " + number);
}
}

Output

The value for integer has been defined The integer is: 45