Thread: Code doesn't work despite being from book

As a quick preface, I bought the book Teach yourself Java in 21 Days to, strangely enough, learn Java. Being a complete beginner who has no idea what I'm doing, I tried running the first example program that they gave me, and it didn't work. I reverted back the the Netbeans they used in the book but no luck..Here are the files

class VolcanoRobot {
    String status;
    int speed;
    float temperature;
 
    void checkTemperature() {
        if (temperature > 660) {
            status = "returning home";
            speed = 5;
        }
    }
 
    void showAttributes() {
        System.out.println("Status: " + status);
        System.out.println("Speed: " + speed);
        System.out.println("Temperature: " + temperature);
    }
}

File 2

class VolcanoApplication {
    public static void main(String[] arguments) {
        VolcanoRobot dante = new VolcanoRobot();
        dante.status = "exploring";
        dante.speed = 2;
        dante.temperature = 510;
 
        dante.showAttributes();
        System.out.println("Increasing speed to 3.");
        dante.speed = 3;
        dante.showAttributes();
        System.out.println("Changing temperature to 670.");
        dante.temperature = 670;
        dante.showAttributes();
        System.out.println("Checking the temperature.");
        dante.checkTemperature();
        dante.showAttributes();
    }
}

Thanks in advance

Does it give an error message or Something? what doesnt work?

No, no error message. It just does absolutely nothing at all, despite the book saying that there was supposed to be an output.

try using debugging mode and see where it doesnot print,the code seems prety fine

Still does nothing in debug mode...

works for me this is what it output to the console

Status: exploring
Speed: 2
Temperature: 510.0
Increasing speed to 3.
Status: exploring
Speed: 3
Temperature: 510.0
Changing temperature to 670.
Status: exploring
Speed: 3
Temperature: 670.0
Checking the temperature.
Status: returning home
Speed: 5
Temperature: 670.0

Hmmm.....I'll have to do some reinstalling

what IDE are you using? eclipse? netbeans? if you can try to refresh the project and see if it works

Originally Posted by derekxec

what IDE are you using? eclipse? netbeans? if you can try to refresh the project and see if it works

Netbeans....And it's too late I'm reinstalling

--- Update ---

This is all I get

debug:
BUILD SUCCESSFUL (total time: 0 seconds)

Thanks, I'll try that

--- Update ---

No idea what I did, but it suddenly works in the IDE...And my command prompt says that javac is not recognized as an internal or external command....

--- Update ---

Sorry for another edit, but it seems that I have to do something with packages? I know you said the IDE isn't the best option, but when I added the package volcano into the IDE thing it seemed to like that, and didn't when I took it out....I don't know why I would need it however if they A) hadn't introduced it in the book, or B) used it in the source code