How to continue this line?

Question

1.00/5 (3 votes)

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Scanner sc = new Scanner(System.in);
String month = sc. nextLine();
switch (month){
case "January":
System.out.println("Ye");
break;
case " February" : 
System.out.println("Hello");
break;
case "May":
System.out.println("nice");
break;
case "October":
System.out.println("ll");
break;
case "November":
System.out.println("o");
break;
case "April":
System.out.println("H");
break;
case "March":
System.out.println("He");
break;
case "December":
System.out.println("Hell");
break;
default:
System.out.println("Invalid");
}
if (....?

What I have tried:

I want that if the months are matching, it should print the statements associated with them as they are already doing. And if anyone of the months are matched, it says something like "want to know more?"

And if nothing matches, along with invalid, it should say nothing. But I don't want to add this in every case. I want to do it using if else statement. Also how can use January, JANUARY and january at the same time?

Posted 22-Jul-23 1:55am

Rudra Jul2023

Updated 27-Jul-23 20:39pm

Deeksha Shenoy

v3

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4 solutions

Solution 2

Add a boolean: call it MatchedOK and set it to true just above the switch.
In your default case, set it to false.

You can then test MatchedOK and tell which way the code went.

By the way ... You should probably use toLowerCase on the switch variable and use all lowercase strings in your case statements: that way it will match "JANUARY", "January", "january", and all other upper and lower case combinations.

Posted 22-Jul-23 3:20am

OriginalGriff

Updated 22-Jul-23 20:59pm

v2

Comments

Rudra Jul2023 22-Jul-23 9:34am

Can you please provide the code

OriginalGriff 22-Jul-23 9:52am

Which bit is giving you difficulties?

Rudra Jul2023 22-Jul-23 12:39pm

The one you added-
You should probably use toLower on the switch variable and use all lowercase strings in your case statements: that way it will match "JANUARY", "January", "january", and all other upper and lower case combinations.
I am sorry but I didn't understood what you want to say - can you please provide the code?

OriginalGriff 22-Jul-23 12:55pm

You are kidding, right?
If you can't write this line of code yourself, then you need to go right back to the beginning of learning the language and start again:

switch (month.toLowerCase()){

[no name] 5-Aug-23 20:33pm

Thank you

Rudra Jul2023 22-Jul-23 21:03pm

Thanks brother

Solution 3

Another problem you have:

Java

case " February" :
System.out.println("Hello");
break;

Replace " February" with "February" , the space matters.

Posted 22-Jul-23 3:25am

Patrice T

Solution 5

I'd rather use a map...
(and follow Griff's advice on lower case)

Java

import java.util.*;
  
public class Year
{

  public static void main( String args[])
  {
    Map<String,String> mAns = new HashMap<String,String>();
    mAns.put("january", "Ye");
    mAns.put("february", "Hello");
    mAns.put("march", "He");
    mAns.put("april", "H");
    mAns.put("may", "Nice");
    mAns.put("june", "Very nice");
    mAns.put("july", "Well");
    mAns.put("august", "Ah");
    mAns.put("september", "See");
    mAns.put("october", "Oh");
    mAns.put("november", "No");
    mAns.put("december", "Doh");

    Scanner scanner = new Scanner(System.in);
    while (true)
    {
      System.out.println("choose your month 'quit' to terminate:");
      String entry = scanner.nextLine();
      entry = entry.toLowerCase();
      if ( entry.equals("quit") ) break;
      System.out.println(answerTo( entry, mAns));
    }
    System.out.println("goodbye");
  }

  private static String answerTo( String entry, Map<String, String > ma)
  {
    String answer = "invalid entry";
    if ( ma.containsKey( entry ))
    {
      answer = ma.get(entry);
    }
    return answer;
  }
}

Posted 27-Jul-23 20:39pm

CPallini

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Accepted Answer · 2023-07-22T03:16:00

Solution 1

You already have the default, which will print "Invalid" if the input does not match any of the other cases. If you want to print something extra then try:

Java

String found = "Success"
switch (month) {
// cases as above
default:
    System.out.println("Invalid");
    found = "Failure";
}
System.out.println(found);

Posted 22-Jul-23 3:16am

Richard MacCutchan

Comments

[no name] 5-Aug-23 20:33pm

System.in

How to continue this line?

4 solutions

Solution 1

Solution 2

Solution 3

Solution 5

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Preview 0

How to continue this line?

4 solutions

Solution 1

Solution 2

Solution 3

Solution 5

Add your solution here

Preview 0

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