//Sample08_01.java

class Sample08_01{
    public static void main(String[] args){

      StringBuilder sb = new StringBuilder();
      sb.append("キレンジャー黄瀬涼太\n");
      sb.append("ミドレンジャー緑間真太郎\n");
      sb.append("アオレンジャー青峰大輝\n");
      sb.append("ムラサキレンジャー紫原敦\n");
      sb.append("アカレンジャー赤司征十郎\n");
      System.out.println(sb.toString());
      int sbLength = sb.length();
      System.out.println("sbLength: " + sbLength);

      String searchWord = "レンジャー";
      int length = searchWord.length();
      int fromIndex = sbLength-1;

      while((fromIndex = sb.lastIndexOf(searchWord, fromIndex)) != -1){
          System.out.print("index: " + fromIndex);
          String hitWord = sb.substring(fromIndex, fromIndex + length +1);
          System.out.println("\t hitWord: " + hitWord);
          fromIndex--;
          if(fromIndex<0)break;
      }
    }
}