We should declare constructor as private for not to allow user to create object from outside of our class. Basically we will declare private constructor in Singleton design pattern. 10.Is Constructor definition
Too Long; Didn't ReadHere we've listed the most commonly asked concepts on constructors in java that can help you ace your java interview. Companies Mentioned Coin Mentioned 1x Read by Dr. One Audio Presented by What is a Constructor? Constructor is the special method that is defined in...
18. What is a constructor in Java?Hide Answer A block of code used to initialize an object is called a constructor. The constructor must share the same name as the class and it has no return type. Default and parameterized constructors are the two types of constructors. 19. Write a fun...
Reflection is the process of introspecting the features and state of a class at runtime and dynamically manipulate at run time. This is supported using Reflection API with built-in classes like Class, Method, Fields, Constructors etc. Example: Using Java Reflection API we can get the class n...
Top Java Interview Questions And Answers – Set 5 1) Can a dead thread be started again? No, a thread that is in the dead state can't be started again. 2) Are arrays of primitive data types? No. In Java, Arrays are objects. 3) What are constructors in Java? In Java, the const...
Top 30 Phone Tech Interview Questions on Java 1. Why String is immutable in Java? (Security, String pool implementation, see morehere) 2. Can abstract class have constructor in Java? (Yes, detailed answer ishere) 3. Which two methods is overridden by an Object, intended to be used as ...
In Java, a constructor refers to a block of code used to initialize an object. In addition: Constructors must have the same name as that of the class. Constructors have no return type. Creating an object will call a constructor automatically. ...
1. What is Constructor in Java? You can define constructor in the general class. The name of the constructor and class name should be same. The syntax of the constructor resembles a method. So, it is defined a specialized method. However, it doesn’t have a return type(not even void)...
Functions and Methods OOPs Interview Questions on Java Go through these Object-Oriented Programming interview questions on Functions and Methods to nail your tech interview on Java OOPs concepts. What is constructor overloading in Java? What do you understand about Tokens in Java? When do you use...
74) Whether constructor has any returnvalue? Constructors return no value, not even`void`. 75) Is constructor inherited? In Java,constructors are not inherited. 76)Is it possible to make a constructor final? Constructors cannot be declared `final`. ...