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Java Program to print current date-time.

Java Code Example — Utility Programs

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Java Program to print current date-time.

Objective

Write a Java program to print the current system date and time.

Algorithm / Approach

  1. Import java.util.Date.
  2. Instantiate a new Date object: Date d = new Date();.
  3. The constructor automatically captures the exact millisecond it was created.
  4. Call d.toString() (or just print the object directly) to see the default formatted time.
DateDemo.java 
import java.util.*;
public class DateDemo {
 public static void main(String[] ar) {
  //Instantiate a Date object
  Date d = new Date();

  //display time & date using toString()
  System.out.println(d.toString());
 }
}

Expected Output

Fri Dec 27 21:51:14 IST 2013

Explanation of the Program

  • The java.util.Date class represents a specific instant in time, with millisecond precision.
  • When instantiated with an empty constructor, it queries the operating system for the current time.

Complexity

Time Complexity O(1)
Space Complexity O(1)
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