对Double类型数据进行截取

1、对Double类型数据进行截取（转换方法1）

public static void main(String[] args) {

   Double ss = 18000.2;
   String test = ss+"";
   String NewNum = test.substring(0,test.length()-4)+"."+test.substring(test.length()-4,test.length()-2);
   Double fromString = new Double(NewNum);
   System.out.println(fromString);
}

2、对Double类型数据进行截取（转换方法2）

public static void main(String[] args) {

   Double ss = 18000.2;
   String test = ss+"";
   String NewNum = test.substring(0,test.length()-4)+"."+test.substring(test.length()-4,test.length()-2);
   Double doubleString = Double.parseDouble(NewNum);
   System.out.println(doubleString);
}

3、对Double类型数据进行截取（转换方法3）

public static void main(String[] args) {

   Double ss = 18000.2;
   String test = ss+"";
   String NewNum = test.substring(0,test.length()-4)+"."+test.substring(test.length()-4,test.length()-2);
   Double doubleString = Double.valueOf(NewNum);
   System.out.println(doubleString);
}