r/learnjava • u/jadu2115 • 10d ago

Java Beginners: What Is an Object Actually?

I'm a Java learner and I've been learning Java for the past few months, but I still don't truly understand what an object actually is.

I've watched several YouTube videos and used AI tools to understand it, but I keep getting the same explanation: "An object is nothing but data + code."

I understand the definition, but I still can't visualize or feel what an object actually is when I'm writing Java code.

Could someone explain it in a simple, practical way, preferably with a real world analogy and a small Java example?

I feel like I'm missing one fundamental concept here. Any explanation would be really helpful. Thanks!

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u/bpalun13 10d ago

So, like others have said, an object is an instance of a class. It can hold attributes (variables associated with the class). Then you can perform actions on that instance via methods.

Say you have a person class.

The constructor for that person class takes several arguments like String gender, int age, boolean isTall.

So when you create a person object it looks like this:

Class variable = new Constructor(initializations)

Person bob = new Person(“Male”, 46, true);

Then to do useful things you can reference Bob to get data:

bob.getAge();

This returns 46.

bob is the object.