java switch statement many cases simplified

So lets say a switch statment is,

switch (month) {  
    case 1: monthString = "January";  
        break;  
    case 2: monthString = "February";  
        break;  
    case 3: monthString = "March";  
        break;  
    case 4: monthString = "April";  
        break;  
    case 5: monthString = "May";  
        break;  

Is it possible to shorten that to something like

switch (month) {
    cases 1-3: monthString = "January";
        break;
    case 4-5: monthString = "April";
        break;

So that multiple case numbers are under one case? I'm doing it as I have 100 cases. 30 lead to one answer, 20 to another, 5 to another etc... so if I can use multiple cases I should cut down the bulk of the code by alot. I should also mention at each case I will want to do a few things and if I use a series of if else statements it only lets me perform one action so I cannot seem to go that route. Thanks for any help! sorry I'm new at this!

Is it possible to shorten that to something like

It's better explained in Java Tutorial The switch Statement

Yes you can do it.

Some of the key points:

• Don't forget to add the break statement.
• Add single break statement after all grouped cases.
• Never forget to add default case as well.

sample code:

    int month = 1;
    String monthString = null;

    switch (month) {
        case 1:
        case 2:
        case 3:
            monthString = "January";
            break;
        case 4:
        case 5:
            monthString = "April";
            break;
        ...
        default:
            ...
    }