package com.javapro.hashset;
import java.util.HashSet;
import java.util.Set;
public class RemoveAll {
public static void main(String[] args) {
Set<String> hs = new HashSet<String>();
hs.add("java");
hs.add("php");
hs.add("html");
hs.add("javascript");
hs.add("mysql");
// print hashset
System.out.println("Before Remove Element hs = " + hs);
HashSet<String> hs2 = new HashSet<String>();
hs2.add("java");
hs2.add("html");
hs2.add("two");
System.out.println("hs2 is = " + hs2);
/*
* Removes from hs set all of its elements that are contained in the hs2
* collection
*/
hs.removeAll(hs2);
System.out.println("After Remove All hs = " + hs);
}
}
Output:
Before Remove Element hs = [javascript, php, html, java, mysql]
hs2 is = [two, html, java]
After Remove All hs = [javascript, php, mysql]
import java.util.HashSet;
import java.util.Set;
public class RemoveAll {
public static void main(String[] args) {
Set<String> hs = new HashSet<String>();
hs.add("java");
hs.add("php");
hs.add("html");
hs.add("javascript");
hs.add("mysql");
// print hashset
System.out.println("Before Remove Element hs = " + hs);
HashSet<String> hs2 = new HashSet<String>();
hs2.add("java");
hs2.add("html");
hs2.add("two");
System.out.println("hs2 is = " + hs2);
/*
* Removes from hs set all of its elements that are contained in the hs2
* collection
*/
hs.removeAll(hs2);
System.out.println("After Remove All hs = " + hs);
}
}
Output:
Before Remove Element hs = [javascript, php, html, java, mysql]
hs2 is = [two, html, java]
After Remove All hs = [javascript, php, mysql]
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