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Your One-Stop Solution for Multithreading in Java Lesson - 17 What is a Java Lambda Expression and How to Implement It? Lesson - 16 What is Polymorphism in Java and How to Implement It? Lesson - 15

What is Java Interface and Why it's Needed? Lesson - 14 What is Inheritance in Java and How to Implement It Lesson - 13 What is an Abstract Class in Java and How to Implement It? Lesson - 12 What is Encapsulation in Java and How to Implement It? Lesson - 11 How to Implement the Revolutionary OOPs Concepts in Java Lesson - 10 What Are Java Classes and Objects and How Do You Implement Them? Lesson - 9 What Are Java Collections and How to Implement Them? Lesson - 8 What Are Java Strings And How to Implement Them? Lesson - 6Īrrays In Java: Declare, Define, and Access Array Lesson - 7 How to Get Started With Eclipse IDE? Lesson - 5 One-Stop Solution for Java Installation in Windows Lesson - 4 What Is JDK? Why Do We Need It? Lesson - 3 What is Java: A Beginners Guide To Java Lesson - 2 An unchecked exception is any exception that extends (which itself is a subclass of java.lang.10 Reasons That Explain Why You Need to Learn Java Lesson - 1

In this case you can create an unchecked exception. Sometimes there will be situations where you don't want to force every method to declare your exception implementation in its throws clause. This is a common technique used to encapsulate exceptions (typically when implementing an API). You'll notice in the above example that IOException is caught and rethrown as FooException. Print error and terminate application. and code calling this method must either handle or propagate this exception (or both): Public void calculate(int i) throws FooException, IOException Methods that can potentially throw or propagate this exception must declare it: Public class FooException extends Exception To define a checked exception you create a subclass (or hierarchy of subclasses) of.