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Java has provided generic support in Set interface.
Syntax
Set<T> set = new HashSet<T>();
Where
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set − object of Set Interface.
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T − The generic type parameter passed during set declaration.
Description
The T is a type parameter passed to the generic interface Set and its implemenation class HashSet.
Example
Create the following java program using any editor of your choice.
package com.tutorialspoint; import java.util.HashSet; import java.util.Iterator; import java.util.Set; public class GenericsTester { public static void main(String[] args) { Set<Integer> integerSet = new HashSet<Integer>(); integerSet.add(Integer.valueOf(10)); integerSet.add(Integer.valueOf(11)); Set<String> stringSet = new HashSet<String>(); stringSet.add("Hello World"); stringSet.add("Hi World"); for(Integer data: integerSet) { System.out.printf("Integer Value :%dn", data); } Iterator<String> stringIterator = stringSet.iterator(); while(stringIterator.hasNext()) { System.out.printf("String Value :%sn", stringIterator.next()); } } }
This will produce the following result −
Output
Integer Value :10 Integer Value :11 String Value :Hello World String Value :Hi World
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