when to use brackets or curly braces

{} is used to enclose a group of code that gets associated together and () is used to enclose function arguments

Anas,

Lets break it up into the common brackets used in Java

• [ ] : this is normal used when declaring scope of an array

  int x [10];  
  

• { } : defines a block of code. You could also nest the block of code

 { // Begin outer scope
     if(x==5)
    { // Begin inner scope
       System.out.println("Hello");
    } // End one inner block
} // End of outer block

• () : is used to contain the parameters or arguments

void Hello (int x)

So to sum it up { } defines an entire block of code; () defines the parameters or arguments for a function or when calling a function; [] is used for declaring an array

Hope that cleared your doubt to some extent

OK, the line: String mCharacterName = "Yoda";

Is actually called a field of the class pez dispenser. All you are doing in that line is declaring a String and assigning it the value "Yoda"

The other lines of code are called a method. You are not creating an object there. You can think of it as creating some function that the class can perform. That method must return a String since you used the String keyword in the declaration. Since methods can perform a lot of different things you need to enclose all of that code inside of curly brackets. The parenthesis you see before the curly braces are where you would take in parameters to your method. Since the getCharacterName method does not take in any parameters the parenthesis are empty. All methods use those parenthesis, both when you declare them and when you use them somewhere else in your code. Even if the method has no parameters.