Question

How to check if an element exists in LinkedList in Java

Answer 1

package javaapplication1;

import java.util.LinkedList;

public class JavaApplication1 {

    public static void main(String[] args) {

        LinkedList lnkList = new LinkedList();
   
        // add elements to LinkedList
        lnkList.add("1");
        lnkList.add("2");
        lnkList.add("3");
        lnkList.add("4");
        lnkList.add("5");
        lnkList.add("6");
        lnkList.add("7");
        lnkList.add("8");
        lnkList.add("9");
        lnkList.add("10");

        boolean b = lnkList.contains("7");
   
        if (b) 
            System.out.println("Contain");
        else 
            System.out.println("Not Contain");
    }
}

/*
run:

Contain

 */

 

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Answer 2

package javaapplication1;
 
import java.util.LinkedList;
 
public class JavaApplication1 {
 
    public static void main(String[] args) {
 
        LinkedList lnkList = new LinkedList();
    
        // add elements to LinkedList
        lnkList.add("1");
        lnkList.add("2");
        lnkList.add("3");
        lnkList.add("4");
        lnkList.add("5");
        lnkList.add("6");
        lnkList.add("7");
        lnkList.add("8");
        lnkList.add("9");
        lnkList.add("10");
 
        if (lnkList.contains("98")) 
            System.out.println("Contain");
        else
            System.out.println("Not Contain");
    }
}
 
/*
run:
 
Not Contain
 
 */

 

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