Java

Java Interview Questions - Multithreading

1. What is Thread from java point of view? Thread is a light weight sub process which is suitable for game & network …

1. What is Nested top-level class? A top level class does not appear inside another class or interface. If a type is not …

1. How may number of operators present in java? Java supports 44 number of of operator. 2. How to convert one type to …

1. What is package? Package is a collection of group of similar types of classes, interfaces and sub packages. 2. State …

1. What is Polymorphism and ways to supports in java? Polymorphism is the concept of “one interface and many …

1. What is String and how String differ from C Lang? String is a predefined class present in java.lang package. String …

1. What is the difference between Swing and AWT components? Basically AWT came first and is a set of heavyweight UI …

1. What is variable? A variable is a container that holds values that are used in a Java program. Every variable must be …

1. What is Collection and what is the difference between Collection and Collections? Collection is a group of similar …

1. What is constructor and its types? Constructor a special type of method that is used to initialize the state of an …

A collection is a group of objects contained in a single object. The Java Collections Framework is a set of classes in …