Switch Statement in Java

Question

Problem:

Hello Kodlogs,

I am feeling good to find a helpful website like this. So many nice, and friendly people are here.

Let me come to the point and put my problem here. I am new to java programming and trying to learn new things every day. I just found a new thing called Switch-Statement.

So, I read about it thoroughly and tried to write a code using the Switch-Statement, but the problem is it returns me an error (the default case must be specified in a switch statement.) instead of my expected output.

Here is my program snippet.

public class Practice { 
    public static void main(String[] args){ 
        int weather = 5; 
        String dayString; 
        switch (weather) { 
        case 1: 
            dayString = "Sunny"; 
            break; 
        case 2: 
            dayString = "Rainy"; 
            break; 
        case 3: 
            dayString = "Windy"; 
            break; 
        case 4: 
            dayString = "Snowy"; 
            break; 
        case 5: 
            dayString = "Cloudy"; 
            break;  
        } 
        System.out.println(dayString); 
    } 
} 

Please shed some light on this. Thanks.

 

Answer 1

Well, in a switch-statement you have to have a default case in your program.

ublic class Practice { 
    public static void main(String[] args){ 
        int weather = 5; 
        String dayString; 
        switch (weather) { 
        case 1: 
            dayString = "Sunny"; 
            break; 
        case 2: 
            dayString = "Rainy"; 
            break; 
        case 3: 
            dayString = "Windy"; 
            break; 
        case 4: 
            dayString = "Snowy"; 
            break; 
        case 5: 
            dayString = "Cloudy"; 
            break;  
        default: 
            dayString = "It is an ordinary day!"; 
            break; 
        } 
        System.out.println(dayString); 
    } 
} 

Here, in every case, the dayString will be checked and if it doesn’t match any cases it will print for the default case. So, in a nutshell, a switch-statement can’t be boolean like if-else. I just added a default case in your program and it’s running fine now.
Thanks.