with Example Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
In Java we can implement the thread programs using two approaches - Using Thread class, sing runnable interface.
methods with Purpose
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
Thread is life cycle specifies how a thread gets processed in the Java program. By executing various methods. Following figure represents how a particular thread can be in one of the state at any time.
Object Oriented Programming
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
One of the exciting features of Windows operating system is that - It allows the user to handle multiple tasks together. This facility in Windows operating system is called multitasking.
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
We can throw our own exceptions using the keyword throw.Here the Throwable's subclass is actually a subclass derived from the Exception class.
types, description
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
Various common exception types and causes are enlisted
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
For explicitly throwing the exception, the keyword throw is used. The keyword throw is normally used within a method. We can not throw multiple exceptions using throw.
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
When a method wants to throw an exception then keyword throws is used. Let us understand this exception handling mechanism with the help of simple Java program.
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
Sometimes because of execution of try block the execution gets break off. And due to this some important code (which comes after throwing off an exception) may not get executed. That
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
When there are chances of occurring multiple exceptions of different types by the same set of statements then such situation can be handled using the nested try statements.
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
It is not possible for the try block to throw a single exception always.There may be the situations in which different exceptions may get raised by a single try block statements and depending upon the type of exception thrown it must be caught.
with Example Exception Handling Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
The statements that are likely to cause an exception are enclosed within a try block. For these statements the exception is thrown.
Benefits, Hierarchy, Types, Keywords used, Example Java Programs
Subject and UNIT: Object Oriented Programming: Unit III: Exception Handling and Multithreading
Exception in Java is an indication of some unusual event. Usually it indicates the error. Let us first understand the concept. In Java, exception is handled, using five keywords try, catch, throw, throws and finally.