What does this mean in Java?

The this keyword refers to the current object in a method or constructor . The most common use of the this keyword is to eliminate the confusion between class attributes and parameters with the same name (because a class attribute is shadowed by a method or constructor parameter).

Read more

What is the public class in Java?

public is a Java keyword which declares a member’s access as public . Public members are visible to all other classes. This means that any other class can access a public field or method. Further, other classes can modify public fields unless the field is declared as final .

Read more