Switch Case Statement

[shantuli]

hi everyone,
i am very new in java. i am having problem in SWITCH CASE STATEMENT. can anyone please help me to solve the following problem:

you have to write a program in java to generate the following menu:

1: DATE
2: MONTH
3: YEAR
4: DAY
if the choice is 1 print date, if 2 print month, if 3 print year, if 4 print year. Do the program using switch case statement

thank you,
regards,
shantuli

[nanosani]

Read about the Time class ... you'll get what you want.

[rickste_r]

I hope this helps, the main stages are as follows:

1. Read In a String literal
2. Create a Calender object
3. Set up arrays for day names and month names
4. Get the current values of the date using the Calender.get(XYZ) methods
5. Based on these values get the correct names from the arrays - i.e. monday
/ july
6. Continously Display a menu using the do-while loop
7. Prompt user for number, convert the string(choiceString) to an
integer(choice)
8. Set a task for each integer using the Switch statement
9. If integer = 5, then exit.

-------------------------------------------------------------------------------

import java.io.*;
import java.io.IOException;
import java.util.*;


public class Test
{
  public static void main(String[] args) throws IOException
  {
    //create a bufferedReader object
    BufferedReader in = new BufferedReader(new 
InputStreamReader(System.in));

    String choiceString;
    int choice;

    //create a Calender object
    Calendar c = Calendar.getInstance();

    //create an array to hold day names
    //these cant be changed later therefore are declared final.
    final String dayNames[] =
        {"Monday",
        "Tuesday",
        "Wednesday",
        "Thursday",
        "Friday",
        "Saturday",
        "Sunday"};

    //create an array to hold month names
    //these cant be changed later therefore are declared final.
    final String monthNames[] =
        {"January",
        "February",
        "march",
        "April",
        "May",
        "June",
        "July",
        "August",
        "September",
        "October",
        "Novemeber",
        "December"};

    //java notation for MONTH is 0-11, where 0 = January
    int month = (c.get(Calendar.MONTH) + 1);

    //java notation for DAY_OF_WEEK is 0-6, where 0 = Sunday
    int day =  (c.get(Calendar.DAY_OF_WEEK) -1);

    //variable to hold day names
    String dayString = dayNames[day-1];

    //variable to hold month names
    String monthString = monthNames[month-1];

    //consistantly ask for user input
    do
    {
      //print out a menu
      System.out.println("\n------- Menu----------");
      System.out.println("1. DATE");
      System.out.println("2. MONTH");
      System.out.println("3. YEAR");
      System.out.println("4. DAY");
      System.out.println("5. Quit");
      System.out.println("Enter choice [1,2,3,4,5]: ");

      System.out.flush();
      choiceString = in.readLine();

      //convert string to integer
      choice = Integer.parseInt(choiceString);

      switch (choice)
      {
        //the choices go here - print the details
        case 1:
      	  System.out.println("\nDATE: " + c.get(Calendar.DATE) ); break;
        case 2:
          System.out.println("\nMONTH: " + monthString); break;
        case 3:
          System.out.println("\nYEAR: " + c.get(Calendar.YEAR)); break;
        case 4:
          System.out.println("\nDAY: " + dayString); break;
        case 5: //exit
          System.exit(0);

        default:
          System.out.println("\nPlease choose a number between 1-5 only 
\n");
      }
    }
    while(choice!= 5);

  }
}

--------------------------------------------------------
Hope that helps! rickster

[Jaspreet Singh]

hi everyone, i am very new in java. i am having problem in SWITCH CASE STATEMENT. can anyone please help me to solve the following problem: you have to write a program in java to generate the following menu:

1: DATE 2: MONTH 3: YEAR 4: DAY if the choice is 1 print date, if 2 print month, if 3 print year, if 4 print year. Do the program using switch case statement

thank you, regards, shantuli

import java.io.*;
class Switch
{
public static void main(String []pp)throws IOException
{
try
{
BufferedReader object = new BufferedReader
                                                         (new InputStreamReader(System.in));
      System.out.println("1. Date");
      System.out.println("2. Month");
      System.out.println("3. Year");
      System.out.println("4. Day");
      System.out.println("enter your choice:");
      int a= Integer.parseInt(object.readLine());
      switch (a){      
        case 1:
           System.out.println("Date");
           break;
        case 2:
          System.out.println("Month");
          break;
        case 3:
          System.out.println("Year");
          break;
        case 4:
          System.out.println("Day");
          break;
        default:
          System.out.println("Invalid Entry!");
  }
    }
    catch(NumberFormatException ne){
      System.out.println(ne.getMessage() + " is not a numeric value.");
      System.exit(0);
    }

  }
}

From
Jaspreet Singh

[Nick Evan]

[..code..] From Jaspreet Singh

Good job! Only six years late and no code-tags :icon_rolleyes:
I wish more people read the rules before posting
closed