clocktalk.java

Usefull sample codes for Java. Containt all type of programs.

import java.util.*;

class ClockTalk {
    public static void main(String[] arguments) {
        // get current time and date
        Calendar now = Calendar.getInstance();
        int hour = now.get(Calendar.HOUR_OF_DAY);
        int minute = now.get(Calendar.MINUTE);
        int month = now.get(Calendar.MONTH) + 1;
        int day = now.get(Calendar.DAY_OF_MONTH);
        int year = now.get(Calendar.YEAR);

        // display greeting
        if (hour < 12) {
            System.out.println("Good morning.\n");
        } else if (hour < 17) {
            System.out.println("Good afternoon.\n");
        } else {
            System.out.println("Good evening.\n");
        }
        
        // begin time message by showing the minutes
        System.out.print("It's");
        if (minute != 0) {
            System.out.print(" " + minute + " ");
            System.out.print( (minute != 1) ? "minutes" :
                "minute");
            System.out.print(" past");
        }

        // display the hour
        System.out.print(" ");
        System.out.print( (hour > 12) ? (hour - 12) : hour );
        System.out.print(" o'clock on ");

        // display the name of the month
        switch (month) {
            case 1:
                System.out.print("January");
                break;
            case 2:
                System.out.print("February");
                break;
            case 3:
                System.out.print("March");
                break;
            case 4:
                System.out.print("April");
                break;
            case 5:
                System.out.print("May");
                break;
            case 6:
                System.out.print("June");
                break;
            case 7:
                System.out.print("July");
                break;
            case 8:
                System.out.print("August");
                break;
            case 9:
                System.out.print("September");
                break;
            case 10:
                System.out.print("October");
                break;
            case 11:
                System.out.print("November");
                break;
            case 12:
                System.out.print("December");
        }

        // display the date and year
        System.out.println(" " + day + ", " + year + ".");
    }
}