help please quick question

[Jacob Rich]

int onelength = wordlistone.length;
int twolength = wordlisttwo.length;
int threelength = wordlistthree.length;


int rand1 = (int) (Math.random() * onelength);
int rand2 = (int) (Math.random() * twolength);
int rand3 = (int) (Math.random() * threelength);

in the above line of code Math.random() is a method right? I'm trying to learn and i'm just not sure about which are variables, objects, and methods in code, havent had much experience yet.

Thanks.

[Kelvin Chenhao Lim]

"Math.random()" is a call to the static method "random" of the "Math" class. Static methods can be invoked directly with the class name, without first instantiating an object instance of the class. Normal (non-static) methods can only be invoked on object instances.

[Jacob Rich]

ah I see, I get what you mean I think... just dont understand what an object class quite is.

[Adam Schaible]

Hello Jacob,

Whenever you create a new file and type

public class MyClass {
//Details removed
}

you're creating a class.

In your code, when you do something like:

MyClass example = new MyClass();

you're creating an object. The common example is that a class is an object's blueprint. In the class, you define what attributes the object may have, what behavior it may have, etc.

A class and an object are different states of the same thing - not unlike water and ice.

Does that help?

[Jacob Rich]

very much so, thanks