int to Integer Java

In this post, I will be sharing how to convert int to Integer in Java. The main difference between int and Integer is that int is a primitive data type whereas Integer is a wrapper class that wraps a value of the primitive data type int in an object.

There are two ways to convert int to Integer in Java:

1. Using Integer.valueOf() method
2. Using new keyword

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1. Using Integer.valueOf() method

You can use Integer's class valueOf() method to convert int to Integer as shown below:

 public class IntToInteger {
    public static void main(String args[]) {
      // Initializing int variable
      int i=100;
      // Convert int to Integer using Integer.valueOf() method
      Integer intObj = Integer.valueOf(i);
      // Printing Integer
      System.out.println("Integer is: " + intObj);
    }
}

Output:
Integer is: 100

2. Using new keyword

You can use new keyword to convert int to Integer in Java as shown below:

 public class IntToInteger2 {
    public static void main(String args[]) {
      // Initializing int variable
      int i = 200;
      // Convert int to Integer using new keyword
      Integer intObj = new Integer(i);
      // Displaying Integer
      System.out.println("Integer is: " + intObj);
    }
}

Output:
Integer is: 200

That's all for today. Please mention in the comments in case you have any questions related to how to convert int to Integer in Java.