15. int indexOf(Object o)

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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);
 
	}
}

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); } }

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Index number of Bhavesh Lakhani: 0
Index number of Vaibhav Prajapati: 3

Index number of Bhavesh Lakhani: 0 Index number of Vaibhav Prajapati: 3