What do you think the output will be for the following code?

Problem statement:
Can you let me know the output of the following code?

1. public class ExecutionOne {
2.     public static void main(String[] args) {
3.         double d1 = 0.8;
4.         double d2 = 0.8;
5.         System.out.println(d1 == d2);
6.         Double d3 = 0.8;
7.         Double d4 = 0.8;
8.         System.out.println(d3 == d4);
9.     }
10. }

Output:

true

false