how can i print

[maty.tsoraro@gmail.com]

hi,
hope i am not spamming here to much
the code is compiling but i cannot print it
doesnt allow me me to use print in void
this is the method :

public class Exam{

public void f(int n){
int j = 1 ;
while(j <= n)
j *= 2 ;
}
}

this is the main class :

public class main{
public static void main(String[] args){
Exam obj = new Exam();
obj.f(8);
}
}

[maty.tsoraro@gmail.com]

Hi!
Thanks a lot for posting, it helps to build the community

About your problem. It's difficult to know which program are you trying to execute.
To allow anybody to see your program you can paste the code (surrounded with the code tag, use the button </> so it's pretty formatted) and also:

1) Right Click on your project, select Edit Project Properties and uncheck the private checkbox (this is to allow anybody to see your program) and click "Save"
2) Right click on your project and click "Get Url", this will give you the URL to share your program
3) Paste the URL in the post

If somebody then use the URL, they will get a clone of your project and can help you faster

Thanks!
David

[maty.tsoraro@gmail.com]

hi
this is the URL
http://www.beta.browxy.com#USER_155622

[dbremmen@gmail.com]

Hi, I think your code should be like this:

I changed:
* the method signature from void to int
* added the return statement to the end of the method
* added the System.out,println to print the result of the method

Code: Select all

public class main{
    public static void main(String[] args){
        Exam obj = new Exam();
       System.out.println(obj.f(8));
    }
}


public class Exam {
    
public int f(int n) {
    int j = 1 ;
    while(j <= n) {
     j *= 2 ;
    } 
   return j;
}
}

[maty.tsoraro@gmail.com]

first of all thanks alot
but'what if i want the method to be with void
if so is ther a way to print the result ?

[dbremmen@gmail.com]

You're welcome!

If you want your method to be void, you can print the result inside the void method like this:

Code: Select all

public class Exam {
    
public void f(int n) {
    int j = 1 ;
    while(j <= n) {
     j *= 2 ;
    } 
   System.out.println(j);
}
}

"void" means that the method does not return the value, that's why you can't print the result of the void method when you call it

[maty.tsoraro@gmail.com]

oh ok
great
now i understand !!