Java Set Interface

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  Java Set Interface is the child interface of Collection. It is introduced in the java 1.2 version. If our requirement is to represent a group of individual objects in a single entity, where insertion order is not preserved and duplicate is also not allowed then we can use set. Java Set Interface doesn’t contain ….  Read More

Java Vector

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Vector Vector is a part of the Java Collection framework since the java 1.2 version. It is implements the List interface, It is found in the java.util package. Vector is the best choice if our frequent operation is retrieval operation. SO if we are want to search and get data from the list then Vector is ….  Read More

Java List Interface

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  Introduction List Interface is the child interface of collection. The List interface is present in java.util package. When we want to represent a group of individual objects in a single entity, where duplicates are allowed and insertion order preserved. Then we should go for the list interface. In List Interface insertion Order is preserve ….  Read More

Collection Interface

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  Introduction: When we are representing a group of individual objects in a single entity then we should go for Collection Interface. Collection interface is the root interface of collection framework. Collection framework holds all the collection classes and interfaces. Collection interface defines the most common methods which are applicable for any collection object. The ….  Read More

Collections in java

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The need for Collection: Array: An Array is an indexed collection of a fixed number of homogeneous data elements. Using arrays the main advantage is we can represent multiple values in a single variable by using arrays. So that Readability of the Code will be Improved.   There are some limitations of object type arrays: ….  Read More

Inner Class in Java

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Introduction Inner class in Java means a class is declared inside another class that type of class is called inner classes. Inner class in Java introduced in 1.1 version as part of “EventHandling” to resolve GUI bugs. Inner classes are very powerful features and also so many benefits that’s why nowadays programmers start using regular ….  Read More

Java Garbage Collection

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Introduction: In old languages like C/C++ programmer is responsible for both the creation and destruction of objects. Usually, programmers are taking very much care while creating objects and neglect the destruction of useless objects. Due to his negligence at a certain point of time for the creation of a new object if sufficient memory may ….  Read More

Class loaders in java

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Java ClassLoader The Java ClassLoader is a part of the (JRE)Java Runtime Environment that dynamically loads Java classes into the (JVM)Java Virtual Machine at run time. Java ClassLoader is an abstract class. It belongs to java.lang package. Java classes aren’t loaded into memory all at once, but when required by an application at that time, ….  Read More