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package com.tools;
import java.text.SimpleDateFormat;
import java.util.Date;
public class StringHandler {

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 public static void main(String[] args) {
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  SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); // ¸ñʽ»¯ÈÕÆÚ
  String beforeDate = sdf.format(getDateBefore(date, 10));
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