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How to convert an int into Integer in java and what is difference between two?

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How to convert an int into Integer in java and what is difference between two?
posted Jun 27, 2017 by Ajay Kumar

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1 Answer

+1 vote
 
Best answer

Something like this -

public class IntToIntegerExample {
  public static void main(String[] args) {
    int i = 10;   
    Integer intObj = new Integer(i);  // Integer constructor to convert int primitive type to Integer object.
    System.out.println(intObj);
  }
}

int vs Integer
The main difference between two is that the 'int' type is a primitive , whereas the 'Integer' type is an object.

Object vs Primitive
Objects provide facilities for polymorphism, are passed by reference and are allocated from the heap. Whereas primitives are immutable types that are passed by value and are often allocated from the stack.

answer Jun 27, 2017 by Salil Agrawal
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