---
title: "What are generics in java"  
description: "What are generics in java"  
author: "Anonymous User"  
published: 2015-07-28  
updated: 2020-09-19  
canonical: https://www.mindstick.com/interview/2738/what-are-generics-in-java  
category: "java"  
tags: ["java"]  
reading_time: 1 minute  

---

# What are generics in java

**Java Generic methods** and generic classes enable programmers to specify, with a single method declaration, a set of related methods or, with a single class declaration, a set of related types, respectively.

Generics also provide compile-time type safety that allows programmers to catch invalid types at compile time.

Using Java Generic concept, we might write a generic method for sorting an array of objects, then invoke the generic method with Integer arrays, Double arrays, String arrays and so on, to sort the array elements.

## Answers

### Answer by Anonymous User

**Java Generic methods** and generic classes enable programmers to specify, with a single method declaration, a set of related methods or, with a single class declaration, a set of related types, respectively.

Generics also provide compile-time type safety that allows programmers to catch invalid types at compile time.

Using Java Generic concept, we might write a generic method for sorting an array of objects, then invoke the generic method with Integer arrays, Double arrays, String arrays and so on, to sort the array elements.


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