In the previous example of comparing dates you have seen how to use after() method in java class for comparing two dates.

Comparing two Dates in Java with the use of before method

     

In the previous example of comparing dates you have seen how to use after() method in java class for comparing two dates. In  this example we are going to compare two date objects with the use of java.util.Date class. For comparing date we are using before() method. The before() method returns boolean value according to date objects.

In CompareDateBefore class we have defined firstDate object and then we used the Thread.Sleep(1000) method to add a delay of 1 second. After 1 second delay our example program creates a new object secondDate. Now the comparison can be done with the use of before() method.

secondDate.before(firstDate);

• secondDate.before(firstDate) will return true when firstDate is initialized after secondDate and
• secondDate.before(firstDate) will return false when firstDate is initialized before secondDate

Here is the full example code of CompareDateBefore class as follows:

CompareDateBefore.java

import java.util.Date; public class CompareDateBefore{   public static void main(String[] args) {  Date firstDate = new Date();   try{   Thread.sleep(1000);   }catch(Exception e){   }   Date secondDate = new Date();   System.out.println("FirstDate:="+firstDate);   System.out.println("SecondDate:="+secondDate);   if(secondDate.before(firstDate))     System.out.println("First Date is initialized after Second Date");   else    System.out.println("First Date is initialized before Second Date");   } }

Output:

C:\DateExample>javac CompareDateBefore.java C:\DateExample>java CompareDateBefore FirstDate:=Wed Oct 08 18:17:31 GMT+05:30 2008 SecondDate:=Wed Oct 08 18:17:32 GMT+05:30 2008 First Date is initialized before Second Date C:\DateExample>

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