You can use the equals() method in the Date class to compare.
Syntax:
boolean equals(Object date)
Returns true when the Date object calling this method is equal to the specified date, otherwise returns false.
(Recommended video tutorial: java video)
Specific code:
//1.利用Date的equals比较大小
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String timeStr1 = "2020-02-12 12:45:45";
String timeStr2 = "2020-02-12 12:45:40";
Date date1 = sdf.parse(timeStr1);
Date date2 = sdf.parse(timeStr2);
if(date1.equals(date2)) {
//相等
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