In Java, sometimes a method may throw an exception in a program but cannot handle it due to not have an appropriate exception handling mechanism. In such a case, the programmer has to throw that exception to the caller of the method using throws clause. Throws clause consists of throws … Read more
Variables in Java Variable is a container which holds the value during the execution of Java program. In other words, Variable is the name of the memory location reserved for storing value. Each variable in Java has a specific type that determines size of the memory. The size of the … Read more
You will have seen earlier in all the programs of exception handling that Java runtime system was responsible for identifying exception class, creating its object, and throwing that object. JVM automatically throws system generated exceptions. All those exceptions are called implicit exceptions. If we want to throw an exception manually … Read more
In this tutorial, we will discuss top encapsulation program in java with step by step explanation. In the previous tutorial, we have learned about encapsulation, data hiding, and tightly encapsulated class in java with realtime example programs. If you have any doubts related to concepts of encapsulation, I will recommend … Read more
In the previous tutorial so far, we learned single try-catch block, multiple catch blocks in a java program. Now we will learn nesting of multiple try-catch blocks inside one try block in a program. Java supports nested try block just like multiple catch blocks. When a try block is defined … Read more
In the previous tutorial, we have known that when an error occurs within a method of program, the method creates an exception object and hand over it to the runtime system (JVM). The process of creating an exception object and handing it to runtime system is called throwing an exception in … Read more
Abstraction in Java Abstraction is another important OOPs principle in Java. It is the process of hiding internal implementation details from the user and providing only necessary functionality to the users. It removes all non-essential things and shows only important things to users. In other words, Abstraction in Java is … Read more