Java Example - Find the last occurrence of a string

//SearchlastString.java 文件public class SearchlastString {
   public static void main(String[] args) {
      String strOrig = "Hello world ,Hello Reader";
      int lastIndex = strOrig.lastIndexOf("Hello");
      if(lastIndex == - 1){
         System.out.println("Hello not found");
      }else{
         System.out.println("Last occurrence of Hello
         is at index "+ lastIndex);
      }
   }}

Last occurrence of Hello is at index 13