/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		boolean flag=false;
      String textInput = "for example";
       int index=0;
String[] yourArray={"ak","example"};
for(int i=0;i<=yourArray.length-1;i++){
 
if(textInput.contains(yourArray[i])){
   flag=true;
   index=i;
 
 }
}
if(flag)
  System.out.println("found at index "+index);
 else
   System.out.println("not found ");
	}
}

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