Java Tutorial

Welcome to Java Tutorial by TutorialKart!

Java is a widely used programming language in developing software. This Java Tutorial is aimed to help beginners to get started with Java Programming language.

Java Tutorial

Java Programming Language is one of the most popular languages among developers. Most of the production servers, regular desktops, workstations, smartphones etc., are powered by Java.

In this Java Tutorial, we shall start with learning the basic and core concepts of Java. We shall also learn how to program and build applications using Java.

Java Tutorials

The following tutorials help you with the Java Basics and Object-Oriented Concepts in Java.

Get Started with Java in your PC

These Java tutorials help you understand what Java is, how to install Java on your personal computer, and how to start programming in Java using an Integrated Development Environment.

• What is Java
• Install Java
• List of IDEs for Java programming
• HelloWorld Java Example Program

Java Basics

Following tutorials deal with the basic building blocks of Java programs, like how to write looping statements, decision-making statements; how to declare variables and how to understand their scope; what type of data can be stored in a variable.

• Structure of a Java Program
• Java – Data Types
• Java – Variable Types
• Java – Access Modifiers in Java
• Operators
  • Java – Arithmetic Operators
  • Java – Relational Operators
• Java – Decision Making
  • Java If Else
  • Java Switch Case
• Java – Loops
  • Java For Loop
  • Java While Loop
  • Java forEach
• Java – Type Conversion
  • Java – String to Int
• Console Operations
  • Java – Read Integer from Console
• Classes and Objects
• Inheritance in Java
• Polymorphism in Java
  • Java Method Overriding
  • Java Method Overloading
  • Java Final Keyword
• Abstraction in Java
• Encapsulation in Java
• Interfaces in Java

String

Strings and different operations on the Strings is usually the most used by Java programmers for developing software.

• Java – Print a string to console output
• Java – Read a string from console input
• Java – Concatenate two strings
• Java – Check if two strings are equal
• Java – Get the index of the first occurrence of a substring in a string
• Java – Get the index of nth occurrence of a substring in a string
• Java – Replace the first occurrence of a substring with another(substring) in a string
• Java – Replace all occurrences of a substring with another(substring) in a string
• Java – Reverse a string
• Java – Trim String
• Java – Split String
• Java – Validate Phone Number
• Java – Remove White Spaces in the String
• Java – Replace Multiple Spaces with Single Space

Java Array

Array is a collection of elements.

Elements in an array are ordered. So, you can access the elements of an array using index.

Array has a fixed length. Once an array is initialized with a specific size, you cannot alter the size of it.

Following Java Tutorials help you understand what an Array is, and how to use in programs.

• Java Array
• Java Array – Initialize
• Java Array – Print
• Java Array of Integers
• Java Array of Strings
• Java Array of Objects
• Java Array of Arrays
• Java Array – Iterate over Elements
• Java Array – For Loop
• Java Array – While Loop
• Java Array – ForEach
• Java Array – Append Element(s)
• Java Array – Check if Empty
• Java Array – Average
• Java Array – Check if Array contains Element
• Java Array – Find Index of Item in Array
• Java Array – Sum
• Java Array – Concatenate
• Java Array – Find Smallest Number
• Java Array – Find Largest Number
• Java Array – Reverse

File Operations

Java provides an inbuilt library to handle file operations like reading a file; writing to a file; appending data to an existing file; or deleting a file. Following example help you with the execution of file operations programmatically using Java.

• Read contents of a File line by line using BufferedReader
• Read contents of a File line by line using Stream in Java 8
• Filter list of files or directories in a folder using Java
• Java Copy File
• Java Delete File
• Java Rename File
• Java – Download File from URL
• Java – Replace a String in File

ArrayList Operations

ArrayList is a Class in Java that is used as a Collection. Following tutorials help you deal some of the operations that can be performed on ArrayLists.

• Print all elements of an ArrayList in Java
• Insert an Element at a specific position in ArrayList in Java
• Delete Nth element of an ArrayList in Java
• Convert String Array to ArrayList in Java

Date Operations

• Access Date and Time in Java using java.util.Date()

Design Patterns

• Singleton Class

Exception Handling

• Call Stack
• Try Catch Block
• Try With Resource

Exceptions

• ArithmeticException
• ArrayIndexOutOfBoundsException
• ArrayStoreException
• ClassCastException
• IllegalArgumentException
• IllegalMonitorStateException
• IllegalStateException
• IllegalThreadStateException
• IndexOutOfBoundsException
• NegativeArraySizeException
• NullPointerException
• NumberFormatException
• SecurityException
• StringIndexOutOfBoundsException
• UnsupportedOperationException

Java Example Programs

• Sorting Algorithms

Useful Resources

• Java Interview Questions

Conclusion

Following the examples and understanding the concepts provided in the sub-articles will surely