java object class

Java Classes

The basic unit of Java coding is a class. All the code you write should be enclosed within the class. Java classes can be divided into three types – Concrete classes, Abstract classes and Interfaces. Out of these, interface has special focus as Java achieves multiple inheritance through interfaces. A.…

java.lang Questions Answers

Learn package in java.lang Questions Answers format. East to learn. Some questions for you from java.lang package. 1. How many ways you can copy one object properties to another? Ans: 3 ways – Shallow copying, Deep copying and Cloning. 2. How many types of inner classes exist? Ans: 4 types.…