AVASOFT Test Engineer Interview Questions and Answers

Method Overloading is creating multiple methods with the same name but different parameters. Method Overriding is creating a new implementation of an existing method in a subclass.

• Method Overloading is used to provide different ways to call the same method with different parameters.

• Method Overriding is used to provide a new implementation of an existing method in a subclass.

• Method Overloading is resolved at compile-tim...read more

An abstract class is a class that cannot be instantiated and is used as a base class for other classes.

• An abstract class can have abstract and non-abstract methods.

• Abstract methods have no implementation and must be implemented by the derived class.

• Non-abstract methods can have implementation and can be inherited by the derived class.

• An abstract class can have constructors and fields.

• An abstract class can be used to de...read more

Static, super, and final are Java keywords used for different purposes.

• Static keyword is used to create class-level variables and methods.

• Super keyword is used to call the parent class constructor or method.

• Final keyword is used to create constants or prevent method or class overriding.

A string is a sequence of characters. To make 'Zycus' string to 'Zycus Infotech' in Java, concatenate the two strings.

• Use the '+' operator to concatenate the two strings.

• Create a new string variable and assign the concatenated value to it.

• Example: String str1 = 'Zycus'; String str2 = ' Infotech'; String result = str1 + str2;