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Generics

Anjali Sharma answered on January 23, 2023 Popularity 9/10 Helpfulness 2/10

answer Generics

Generics

Comment

Generics means parameterized types.

The idea is to allow type (Integer, String, … etc., and user-defined types) to be a parameter to methods, classes, and interfaces.

Using Generics, it is possible to create classes that work with different data types.

import java.util.*;
  
class Test {
    public static void main(String[] args)
    {
        // Creating a an ArrayList with String specified
        ArrayList<String> al = new ArrayList<String>();
  
        al.add("Sachin");
        al.add("Rahul");
  
        // Typecasting is not needed
        String s1 = al.get(0);
        String s2 = al.get(1);
    }
}

https://www.geeksforgeeks.org/generics-in-java/

Popularity 9/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: generics java

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