字符串类型的日期转化为Date类型

package com.th.mobula.test;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

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

        String s = "2019-10-31";
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
        Date date = null;
        try {
            date = simpleDateFormat.parse(s);
            System.out.println(date);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        System.out.println("the outline date is "+ date);
    }
}
/*
 * Date date = null; 这句不可省略，如果省略try catch范围外将不可引用date变量，即
 * System.out.println("the outline date is "+ date); 这句中的date将无法引用变量值
 */