Add Minutes to Current Time Using Calendar.add() Method in Java

Java provides a built-in class called Calendar that allows developers to work with dates and times in their applications. The Calendar class provides various methods to manipulate dates and times, such as adding or subtracting days, months, years, hours, minutes, and seconds.

Problem Statement

Write a Java program to increment the current time by 10 minutes using the Calendar class.

Current Date = Thu Nov 22 16:24:27 UTC 2018
Updated Date = Thu Nov 22 16:34:27 UTC 2018

Steps to add minutes to current time using Calendar.add() method

Below are the steps to add minutes to current time using Calendar.add() method

• Step 1: Import the Calendar class from the java.util package.
• Step 2: Create a Calendar object using the getInstance() method to get the current date and time.
• Step 3: Display the current date and time using the getTime() method.
• Step 4: Use the add() method with the Calendar.MINUTE constant to increment the current time by 10 minutes.
• Step 5: Display the updated date and time using the getTime() method.

Example

Given below is the Java program ?

import java.util.Calendar;
public class Demo {
   public static void main(String[] args) {
      Calendar calendar = Calendar.getInstance();
      System.out.println("Current Date = " + calendar.getTime());
      // Add 10 minutes to current date
      calendar.add(Calendar.MINUTE, 10);
      System.out.println("Updated Date = " + calendar.getTime());
   }
}

Output

Current Date = Thu Nov 22 16:24:27 UTC 2018
Updated Date = Thu Nov 22 16:34:27 UTC 2018

Code Explanation

Import the following package for Calendar class in Java.

import java.util.Calendar;

Firstly, create a Calendar object and display the current date and time.

Calendar calendar = Calendar.getInstance();
System.out.println("Current Date and Time = " + calendar.getTime());

Now, let us increment the minutes using the calendar.add() method and Calendar.HOUR_OF_DAY constant.

calendar.add(Calendar.MINUTE, 10);