how to get index of certain character in string in java code example

Example 1: String indexOf(String str int fromIndex) method in java

import java.util.*;
public class StringIndexOfMethodExample
{
   public static void main(String[] args)
   {
      String strInput = new String("hello world core java");
      String strSub = new String("core");
      System.out.print("Index found: " );
      System.out.println(strInput.indexOf(strSub, 3));
   }
}

Example 2: java indexof not found

The java string indexOf() method returns index of given character value or substring. If it is not found, it returns -1. The index counter starts from zero.

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