Can we have more than one public class in java?
Yes ! . java file can contain only one public class. If you want these two classes to be public they have to be put into two .
Why can’t we define 2 public java classes in a single file?
As per java language specification, there can be only one public class in a file (. java) and file name should be same as public class name. If you want class B accessible in other placs, you may create a separate B. java file and move your Class B code to that file.
Are all java classes 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 .
Can we inherit two classes in Java?
When one class extends more than one classes then this is called multiple inheritance. … Java doesn’t allow multiple inheritance.
Can Java have two classes?
Yes you can have more than one class inside a . java file. … Having many classes inside one file means those classes are in the same package. So any other classes which are inside that package but not in that file can also use those classes.
Can constructor be inherited?
Constructors are not members, so they are not inherited by subclasses, but the constructor of the superclass can be invoked from the subclass.
Which is not a Java feature?
2) Which of the following is not a Java features? Explanation: The Java language does not support pointers; some of the major reasons are listed below: One of the major factors of not using pointers in Java is security concerns. Due to pointers, most of the users consider C-language very confusing and complex.
Is overriding possible in java?
In Java, methods are virtual by default. We can have multilevel method-overriding. Overriding vs Overloading : … Overriding is about same method, same signature but different classes connected through inheritance.
How many classes can you define in a java package?
There is no limit in the specification, so you can put classes into the package until hitting a technical limitation. If not hitting a limit at the file system or archive format, the runtime implementation likely uses arrays or collections to hold the classes, which limits the number to something close to 2³¹.