Search Interview Questions |  More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know. |
|
|||
|
| ||||
| Interview Questions and Answers | ||||
| ||||
| Ans. With Collection classes , we cannot use primitive types. Moreover for any class using generic types, we cannot use primitive types. They add more functionality by means of additional methods. As their reference can be null , they offer consistent check for uninitialized state. They facilitate caching and reuse by means of constant Pools. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
 Discuss Correct / Improve  wrapper classes benefits of wrapper classes over primitives | ||||
 Related Questions | ||||
 Will this code give error if i try to add two heterogeneous elements in the arraylist. ? and Why ? | ||||
| What are the Wrapper classes available for primitive types ? | ||||
| What are wrapper classes ? | ||||
| Explain Autoboxing ? | ||||
| What is the difference between uninitialized values for primitive types and Wrapper classes ? | ||||
| Difference between boolean and Boolean ? | ||||
| What are Wrapper Classes ? What are Primitive Wrapper Classes ? | ||||
| What Design pattern Wrapper Classes implement ? | ||||
| Can we compare Integers by using equals() in Java ? | ||||
