Write a Java Program to convert primitive types to objects and vice versa

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class Main {
  public static void main(String[] args) {

    // create primitive types
    int var1 = 5;
    double var2 = 5.65;
    boolean var3 = true;

    //converts into wrapper objects
    Integer obj1 = Integer.valueOf(var1);
    Double obj2 = Double.valueOf(var2);
    Boolean obj3 = Boolean.valueOf(var3);

    // checks if obj are objects of
    // corresponding wrapper class
    if(obj1 instanceof Integer) {
      System.out.println("An object of Integer is created.");
    }

    if(obj2 instanceof Double) {
      System.out.println("An object of Double is created.");
    }

    if(obj3 instanceof Boolean) {
      System.out.println("An object of Boolean is created");
    }
  }
}