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Java Exception Handling sample code examples - Java Exception Handling Programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. An exception is an event, which occurs during the execution of a program, that interrupts the normal flow of the program. It is an error thrown by a class or method reporting an error in code. Class is the superclass of all errors and exceptions in the Java language. Exceptions are broadly classified as 'checked exceptions'. Exceptions can be handled by using 'try-catch'. We can explicitly throw an exception using 'throw'.

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List of all java annotations examples - Java Annotation (Metadata) Programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. Java Annotations (Metadata) Examples. List Of All Annotation (Metadata) Programs:. How to create basic custom annotation? What is Retention policy in java annotations? How to get annotations at runtime using java reflection? How to get all annotations from a class? How to assign default values to custom annotations? What is marker annotation and how to process it at runtime? Built-in Java Annotations: @Deprecated example.

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Java sorting algorithms - Java sorting algorithm programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. A sorting algorithm is an algorithm that puts elements of a list in a certain order. The most-used orders are numerical order and lexicographical order. Efficient sorting is important for optimizing the use of other algorithms such as search and merge algorithms, which require input data to be in sorted lists; it is also often useful for canonicalizing data and for producing human-readable output. Write a program to find ...

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Java collections and util package sample code examples

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. Java Collections and Util Package. This page gives examples about Collection package and Util package. List Of Collection Classes Sample Programs:. Java Collections Class Examples. List Of Util Classes Sample Programs:. Java Random Class Examples. Java Regular Expression Examples. The only difference between StringBuffer and StringBuilder is StringBuffer is thread-safe, that is StringBuffer is synchronized.

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Java String sample code examples - Java String Programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. The String class is immutable (constant), i.e. Strings in java, once created and initialized, cannot be changed. The String is a final class, no other class can extend it, and you cannot change the state of the string. String values cannot be compare with '= ', for string value comparision, use equals() method. The string examples given below describes more on string functionlaity. String Sample Code Examples. The servlet...

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Java generics sample code examples - Java Generic Programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. Generics were added by JDK 5. Most of the algorithms are logically same irrespective of the type of data they are being applied to. By using generics you can define an algorithm once, and you can apply it on any kind of datatype without any additional effort. Java Generics Sample Code Examples. Write a simple generics class example. Write a simple generics class example with two type parameters.

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List of all java interview algorithms - Java Interview Programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. In this section, we are giving few java interview programs faced by some of my friends. If you come across any questions, post it to me. I can provide solutions. You can email me at [email protected]. List Of All Interview Programs:. How to reverse Singly Linked List? Find out duplicate number between 1 to N numbers. Find out middle index where sum of both ends are equal. Write a singleton class. Write a program to check ...

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List of all JDBC examples - Java JDBC Programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. JDBC stands for Java Database Connectivity. JDBC API is a collection of classes and interfaces, which help a Java application to connect to SQL based relational databases by abstracting vendor specific details of the database. JDBC enables Java developers to connect to any SQL compliant database, send SQL statements, and process return messages and data. List Of All JDBC Programs:. How to create JDBC Connection? What are ...

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Java interview questions - Java Interview Questions & Answers

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. We have collected all java interview questions from many people from different technical interview. This will be very helpful for the technical people to prepare for the java interview very quickly. We request you to send us if you face any new java interview questions to us, so that we can publish here which will be helpful for many people. List Of Java Interview Questions:. Give the list of Java Object class methods.

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Java JUnit - Java JUnit sample programs

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Publish Your Article Here. Collections and Util Package. Java Restful Web Services. Simple JUnit test using @Test annotation. List of JUnit annotations. Assertion method Assert.assertArrayEquals() example. How to do JUnit test for comapring two list of user defined objects? Assertion method Assert.assertEquals() example. Assertion method Assert.assertFalse() example. Assertion method Assert.assertTrue() example. Assertion method Assert.assertNotNull() example. Default value of a local variables? I'm Nata...