Question

Wrapper classes for:
1) boolean
2) int
3) double

Answer 1

The wrapper classes for boolean, int, and double in Java are Boolean, Integer, and Double, respectively.

Step-by-step explanation:

The wrapper classes for boolean, int, and double in Java are Boolean, Integer, and Double, respectively. Wrapper classes are used to convert primitive data types into objects so that they can be used in Java collections and other operations that require objects. For example, to store a boolean value in an ArrayList, you can use a Boolean wrapper class:

List<Boolean> myList = new ArrayList<>();
myList.add(Boolean.TRUE); // adding a Boolean object

Similarly, you can use Integer and Double wrapper classes to store int and double values, respectively.