Question

Write the class SwitchingUpMonths.java. This program will be completing exactly the same task as Lab3c, however you will need to use switch-case conditional statements instead of if-else That is, your program must: 1. Asks a user to enter the name of a month 2. Confirms the User's input. 3. Prints the abbreviation and number corresponding to that month The sample output for input February Enter the month You entered February Its abbreviation is FEB This is month number 2

Answer 1

if-else-if ladder: Here, a user can decide among multiple options.The if statements are executed from the top down. As soon as one of the conditions controlling the if is true, the statement associated with that if is executed, and the rest of the ladder is bypassed. If none of the conditions is true, then the final else statement will be executed.

if (condition)
    statement;
else if (condition)
    statement;
.
.
else
    statement;

<------------------------------------------------------------------------------------------------------------------------------------------------->

switch-case The switch statement is a multiway branch statement. It provides an easy way to dispatch execution to different parts of code based on the value of the expression.
Syntax:

switch (expression)
{
  case value1:
    statement1;
    break;
  case value2:
    statement2;
    break;
  .
  .
  case valueN:
    statementN;
    break;
  default:
    statementDefault;
}

<--------------------------------------------------------------- Program----------------------------------------------------------------------->

import java.io.*;
class Sm
{
   public static void main(String args[]) throws IOException
   { int m;
  
       System.out.println("Enter your month ");
       DataInputStream d= new DataInputStream(System.in);
       m=Integer.parseInt(d.readLine());
  
      
       switch(m)
       {
           case 1:
           System.out.println("You entered Janaury ");
           System.out.println("It's abbreviation is Jan ");
           System.out.println("This is month number "+m);
           break;
       case 2:
           System.out.println("You entered February ");
           System.out.println("It's abbreviation is Feb ");
           System.out.println("This is month number "+m);
           break;
       case 3:
           System.out.println("You entered March ");
           System.out.println("It's abbreviation is March ");
           System.out.println("This is month number "+m);
           break;
       case 4:
           System.out.println("You entered April ");
           System.out.println("It's abbreviation is April ");
           System.out.println("This is month number "+m);
           break;
       case 5:
           System.out.println("You entered May ");
           System.out.println("It's abbreviation is May ");
           System.out.println("This is month number "+m);
           break;
       case 6:
           System.out.println("You entered June ");
           System.out.println("It's abbreviation is June ");
           System.out.println("This is month number "+m);
           break;
       case 7:
           System.out.println("You entered July ");
           System.out.println("It's abbreviation is July ");
           System.out.println("This is month number "+m);
           break;
       case 8:
           System.out.println("You entered February ");
           System.out.println("Is abbreviation is Feb ");
           System.out.println("This is month number "+m);
           break;
       case 9:
           System.out.println("You entered February ");
           System.out.println("It's abbreviation is Feb ");
           System.out.println("This is month number "+m);
           break;
       case 10:
           System.out.println("You entered October ");
           System.out.println("It's abbreviation is Oct ");
           System.out.println("This is month number "+m);
           break;
       case 11:
           System.out.println("You entered Novmber ");
           System.out.println("It's abbreviation is NOv ");
           System.out.println("This is month number "+m);
           break;
       case 12:
           System.out.println("You entered December ");
           System.out.println("It's abbreviation is Dec ");
           System.out.println("This is month number "+m);
           break;
       default:
       System.out.println("This is wrong Entry ");
         
       }
   }
}

<----------------------------------- Output is --------------------------------------------------------------------->

JC JCreator- [Sm.java] File Edit Search Project Build Iools Configure Window Help View - x File View XSm.java Smi.java Workspace '"Default': 0 Projects E Extemal Files Sm java JSmi java System.out println("This is nonth number break 52 53 54 55 56 57 "+m) case 9 System.out .println("You entered February ") System.out println"It's abbreeviation is Feb System.out.println"This is month number break ") "m) 58 C:AProgram FilesXinox SoftwareJCreatorV3 LE\GE2001.exe Enter your month You entered June It's abbreviation is June This is month number Press any key to continue..-- 6 Package View дх Package View not available Package View Data View General Output General Output Build Output Task List EFind Results 1 Find Results 2 Ln 1 Col 1 Char 1 OVR Read CAP NUM Activates the find Tool 1:57 AM f Ps JC EN 10/7/2019