[java] split string by dot | 用 dot 來切割字串

package test_fb_api;

import java.util.Arrays;

public class testStringSplite {

 public static void main(String[] args) {

  String locat = "http://ibobar-content.oss-cn-hangzhou.aliyuncs.com/book1669/hj1669_ipad.png";
  String[] temp = locat.split("/");
  String downloadPath = "ibobar" + "/" + "getBookList"
    + "/" + temp[temp.length - 2] + ".jpg";
  
  System.out.println("method 1:");
  String ss = temp[temp.length - 1];
  String[] temp2 = ss.split("\\.");
  System.out.println("副檔名 = "+temp2[temp2.length - 1]);
  //System.out.println(Arrays.toString(temp2));
  System.out.println("===============================");
  
  System.out.println("method 2:");
  int startIndex = ss.lastIndexOf(46) + 1;
  int endIndex = ss.length();
  System.out.println("副檔名 = " + ss.substring(startIndex, endIndex)); // 副檔名
  
 }

}