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Category: Core Java

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Core Java

Java Annotations

Annotation(Metadata) Concepts The Built-In Annotation in java.lang package Examples The Built-In Annotation in java.lang.annotation package Examples Some Restriction Annotation(Metadata) Concepts A new facility was added to java 5 that enables you to embed supplemental...

Java Enum 0

Core Java

Java Enum

What is Enum in Java? The values() and valueOf() methods Use an enum constructor, instance variable, and method Overlaoding Constructor Demonstrate ordinal(), compareTo(), and equals(). What is Enum in Java? Version prior to JDK...

Java Generics 0

Core Java

Java Generics

What is Generics? The Legacy Way to Do Collections Using Generics Generic Methods Bounded Type Parameters Generic Classes What is Generics? J2SE 5.0 provides compile-time type safety with the Java Collections framework through generics...

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Core Java

Introduction to Collection OR Java.util package

What is Collection? Collection Framework. Benefits of java collection framework About Collection interface ArrayList LinkedList HashSet TreeSet The Map interface HashMap TreeMap Vector Dictionary HashTable Properties What is the difference between Enumeration & Iterator?...

Java Concurrency 0

Core Java

Java Concurrency

Concurrency Programming in Java Concurrency through java Synchronization High Level Concurrency Objects Concurrency Programming in Java How to write applications that perform multiple tasks simultaneously. The Java platform is designed from the ground up...

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Core Java

Threads in Java

What is Thread? Single-threaded and multithreaded applications The Thread Class The Runnable Interface Life Cycle of a Thread Some Important Methods in java.lang.Thread getName(),setName() and currentThread() Methods Thread Implementation using Runnable Thread Priority Advantages...

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Core Java

Introduction to Java Stream OR java.io package

Streams Working process of the I/O streams InputStream Class Hierarchy OutputStream Class Hierarchy Readers and Writers The File Class File Input and Output ByteArrayInputStream Buffered I/O classes Character Streams The RandomAccessFile Class Serialization Streams...

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Core Java

Concept of Inner Class in Java

Nested Classes The Types of Classes: Top level classes Nested classes Static classes Inner classes Anonymous classes Local classes Nested Interface Multi Nesting Access GUI Example without Inner Class GUI Example with Inner Class...

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Core Java

Exception-handling in Java

The need for exception Exception Classes Error Class Unchecked exceptions and Checked exceptions Exception-handling Techniques The try block The catch block The throw statement The throws statement The finally block Common exceptions The Throwable...

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Core Java

An introduction to package

Understanding Code Libraries Creating packages in java Executing class with package Executing class with package from different location Executing class from jar file Packages and access control Access Specifiers within a package among different...