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Java Tutorials

Java Exception Throw Clause – Tutorial & Examples

Java exception Throw Clause – “throw” clause is used to throw an exception from our side. Normally, the system throws an exception when a runtime error occurs. Generally “throw” is used in two situations When we want to throw a new exception object (that is created by us) When we want to pass an exception object from one place to ...

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Constructors In Java – Types & Examples | JavaTutorials

A constructor is a special method that is invoked when a new object is created. If we want to perform any one-time activities on an object at the time of its creation, then the constructor is the right place. Generally, the initialization of instance variables are done in the constructor. The purpose of a constructor is not limited to initialization. ...

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Java Constructor Chaining – Types & Example | Tutorials

Java Constructor Chaining – Calling one constructor from another constructor is generally referred to as constructor chaining. This can be achieved in two ways. this() super() in some cases we use only this(), in some other cases, we use only super(). Sometimes we use both (but not directly). Normal Java constructor calling (without chaining) When we create an object, its ...

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Exception Handling In Java – Tutorial & Examples

What is Exception Handling In Java – When we work with a program we come up with different kinds of errors like syntactical errors, logical errors, runtime errors, etc. let us try to differentiate these errors with a simple program. Example Program To Differentiate the Errors: [crayon-5bebd1751b319884257777/] The above program will not cross the compilation stage because there is a ...

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Multilevel Inheritance In Java – Tutorial & Examples

What is Multilevel Inheritance In Java? In Java (and in other object-oriented languages) a class can get features from another class. This mechanism is known as inheritance. When multiple classes are involved and their parent-child relation is formed in a chained way then such formation is known as multi-level inheritance. In multilevel inheritance, a parent a class has a maximum ...

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Multithreading In Java – Tutorial & Examples | JavaTutorials

Multithreading in Java,  is the mechanism of executing different parts of a program simultaneously. Suppose, in a normal program, we are in one method and calling another method then the control goes to the called method, executes the statements in that method and comes back to calling the method. As long as the control executes the method, the statements after ...

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List Of Difference Between Abstract Class And Interface | Tutorial

Differences between Abstarct class and Interface complete tutorial with suitable examples and sample outputs. In case if you need more information about the difference between Abstract class and Interface leave a comment here. An abstract class can have concrete methods, but an interface cannot have. Example 1: [crayon-5bebd1751c2a3690581902/] [crayon-5bebd1751c2af681733419/] Example 2: An abstract class can consist both abstract methods and ...

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Java Continue Statement – Tutorial & Examples

Java continue complete tutorial with examples. If you have any doubts related to Java continue do leave a comment here. Definition: ‘continue’ is a statement used to skip the remaining statements in the current iteration and move to next iteration of a loop. The looping construct can be a while loop, for loop or a do-while loop. Without a loop, we ...

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Convert String To int Java – Tutorial & Examples

How to Convert String to int in Java – The following article will let you know the complete information about string to int java, in case if you have any doubts do let me know. We have different ways to convert a String to int in Java Integer.parseInt() Integer.valueOf() Integer.parseUnsignedInt() Our own logic equivalent to – Integer.parseInt() Integer.decode() Integer() constructor ...

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