Can two classes in different packages have the same name?
Yes, you can have two classes with the same name in multiple packages. However, you can’t import both classes in the same file using two import statements. You’ll have to fully qualify one of the class names if you really need to reference both of them.
Can we have same method name in different classes?
Yes, It is allowed to define a method with the same name as that of a class. There is no compile-time or runtime error will occur.
Can we import same class package twice?
Yes, you can import a class twice in Java, it doesn’t create any issues but, irrespective of the number of times you import, JVM loads the class only once.
Can we extend class from different package?
i think it’s not because import is only possible from packages at higher level. it will fail becuse it cannot see what A is.
Can package name be same as class name?
Yes, it will work. You can have a class named abc. abc. abc.
Can you have two classes with the same name in Java?
For convenience, Java allows you to write more than one method in the same class definition with the same name. For example, you can have two methods in ShoppingCart class named computeCost. Having two or more methods named the same in the same class is called overloading.
What happens if two interface have same method name?
So, if the class already has the same method as an Interface, then the default method from the implemented Interface does not take effect. However, if two interfaces implement the same default method, then there is a conflict.
Which name is same as class name in Java?
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Every class object is created using the same new keyword, so it must have information about the class to which it must create an object. For this reason, the constructor name should be the same as the class name.
Can I import same package?
Ans. One can import the same package or same class multiple times.
How do I get a fully qualified class name?
The fully-qualified class name can be obtained using the getName() method.
How do you call a class from a different package?
To import java package into a class, we need to use java import keyword which is used to access package and its classes into the java program. Use import to access built-in and user-defined packages into your java source file so that your class can refer to a class that is in another package by directly using its name.
Can class of a package be inherited by a different package class?
Yes, they can always inherit the protected members of its superclass regardless of the package they are in.
Can two classes have same name in Java?
Note that you can’t import two classes with the same name in two different packages. The classes Integer and String belongs to the package java. lang but they don’t need to be imported as the java.
Which of the following should have a same name as class name?
Constructor is a special method that is invoked automatically at the time of object creation. It is used to initialize the data members of new objects generally. Constructor in C++ has the same name as class or structure. Hence the correct answer is Constructor.
When can you have two classes with the same name?
You cannot have two classes with the same name. Well, a class name can be the same, but only when defined in different namespace. So they’d have a different qualified identifier.
Can two interface have same name?
But interface will contain only the declaration of the members. The implementation of interface’s members will be given by the class who implements the interface implicitly or explicitly. C# allows the implementation of multiple interfaces with the same method name.
Can a class have multiple interfaces?
A class or struct can implement multiple interfaces, but a class can only inherit from a single class.
How can I find the class name?
The simplest way is to call the getClass() method that returns the class’s name or interface represented by an object that is not an array. We can also use getSimpleName() or getCanonicalName() , which returns the simple name (as in source code) and canonical name of the underlying class, respectively.
When method name and class name is same it is called?
Having two or more methods named the same in the same class is called overloading.
How do I use classes in the same package?
Classes and interfaces in the same package can use each other without prefixing their names with the package name. But to use a class or an interface from another package, you must use its fully qualified name, that is, packageName. anySubpackageName. ClassName .
How do I import a class within the same package?
Example: I have class X in package name pack1.
- package pack1; public class X { . . }
- package pack1; public class Y { . . }
- import pack1. X; import pack1. Y;
Can we give fully qualified class name instead of importing the class?
3) Using fully qualified name
Now there is no need to import. But you need to use fully qualified name every time when you are accessing the class or interface. It is generally used when two packages have same class name e.g. java.util and java.sql packages contain Date class.
What is fully classified class name in Java?
A fully-qualified class name in Java contains the package that the class originated from. Also, an inner class is a class that is another class member. So, the fully-qualified name of an inner class can be obtained using the getName() method.
What is subclass in package?
A subclass inherits all of the public and protected members of its parent, no matter what package the subclass is in. If the subclass is in the same package as its parent, it also inherits the package-private members of the parent.
How do you call a method from another class in the same package in Java?
If it’s not static , then you need an instance of the class on which to call it: TheClass t = new TheClass(); t. theMethod(); Note that to use a method of a class from an unrelated class in the same package, the method must not be marked private .