Java : Collection Framework : TreeSet (Check Object exist or not)

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TreeSetExample.java

import java.util.TreeSet;

/*
 * Example of contains(Object o) method.
 */
public class TreeSetExample
{
    public static void main(String[] args)
    {

        TreeSet<Integer> treeSet = new TreeSet<Integer>();

        treeSet.add(40);
        treeSet.add(20);
        treeSet.add(30);
        treeSet.add(10);
        treeSet.add(50);

        System.out.println("treeSet : " + treeSet + "\n");

        /*
         * Returns true if this set contains the specified element.
         */

        boolean isExist = treeSet.contains(20);

        System.out.println("isExist : " + isExist);
    }
}

Output

treeSet : [10, 20, 30, 40, 50]

isExist : true

To Download TreeSetDemoContains Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/TreeSetDemoContains.zip?attredirects=0&d=1

See also:

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