15. int indexOf(Object o)
15. int indexOf(Object o)
Returns the index of the first occurrence of the specified element in this list,
or -1 if this list does not contain the element.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | package com.spy.method.LinkedList; import java.util.ArrayList; import java.util.LinkedList; public class indexofMethod { public static void main(String[] args) { LinkedList<String> emp_list=new LinkedList<>(); emp_list.add("Bhavesh Lakhani"); emp_list.add("Abhilash Shah"); emp_list.add("Nilay Shah"); emp_list.add("Vaibhav Prajapati"); int index=emp_list.indexOf("Bhavesh Lakhani"); System.out.println("Index number of Bhavesh Lakhani: "+index); int i=emp_list.indexOf("Vaibhav Prajapati"); System.out.println("Index number of Vaibhav Prajapati: "+i); } } |
output
1 2 | Index number of Bhavesh Lakhani: 0 Index number of Vaibhav Prajapati: 3 |