Question

How to search an element in ArrayList with Java

Answer 1

package javaapplication1;

import java.util.ArrayList;

public class JavaApplication1 {

    public static void main(String[] args) {

        ArrayList arrList = new ArrayList();
   
        arrList.add("Java");
        arrList.add("C#");
        arrList.add("C++");
        arrList.add("PHP");
        arrList.add("JavaScript");
        arrList.add("C");
        arrList.add("Swift");
        
        boolean b = arrList.contains("C++");
        System.out.println(b);
  }
}
  
/*
run:

true

*/

 

70+ SQL courses for beginners and professionals

Answer 2

package javaapplication1;

import java.util.ArrayList;

public class JavaApplication1 {

    public static void main(String[] args) {

        ArrayList arrList = new ArrayList();
   
        arrList.add("Java");
        arrList.add("C#");
        arrList.add("C++");
        arrList.add("PHP");
        arrList.add("JavaScript");
        arrList.add("C");
        arrList.add("Swift");
        
        int index = arrList.indexOf("PHP");
        if (index == -1)
            System.out.println("Not Found");
        else
            System.out.println("Found at index: " + index);
  }
}
  
/*
run:

Found at index: 3

*/

 

70+ SQL courses for beginners and professionals