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  • Java Basics
  • Java Tutorial
  • Java Installation
  • Java HelloWorld Program
  • Java Program Structure
  • Java Data Types
    • byte
    • short
    • int
    • long
    • float
    • double
    • boolean
    • char
  • Java Variables
    • Java Variable Types
  • Java Access Modifiers
  • Java Operators
    • Arithmetic Operators
    • Assignment Operators
    • Relational Operators
    • Logical Operators
    • Bitwise Operators
  • Java Decision Making
    • If statement
    • If-Else statement
    • If-Else-If statement
    • Switch statement
  • Java Loops
    • Java While Loop
    • Java Do-while Loop
    • Java For Loop
    • Java ForEach
    • Java Break
    • Java Continue
    • Nested While Loop
    • Nested For Loop
    • Infinite While Loop
    • Infinite For Loop
  • Java Array
    • Java Array
    • Print array
    • Initialize array
    • Array of integers
    • Array of strings
    • Array of objects
    • Array of arrays
    • Iterate over array
    • Array For loop
    • Array while loop
    • Append element to array
    • Check if array is empty
    • Array average
    • Check if array contains
    • Array ForEach
    • Array - Find Index of Item
    • Array sum
    • Concatenate arrays
    • Find smallest number in array
    • Find largest number in array
    • Array reverse
  • Java OOPs
    • Classes and Objects
    • Inheritance
    • Polymorphism
    • Method Overloading
    • Method Overriding/
    • Abstraction
    • Abstract methods and classes
    • Interfaces
    • Encapsulation
    • Polymorphism
  • Java String
    • Basics
    • Print string
    • Read string from console
    • Create string from Char array
    • Create string from Byte array
    • Concatenate two strings
    • Get index of the first Occurrence of substring
    • Get index of nth occurrence of substring
    • Checks
    • Check if two strings are equal
    • Check if string ends with specific suffix
    • Check if string starts with specific prefix
    • Check if string is blank
    • Check if string is empty
    • Check if string contains search substring
    • Validate if string is a Phone Number
    • Character Level
    • Get character at specific index in string
    • Get first character in string
    • Get last character from string
    • Transformations
    • Replace first occurrence of string
    • Replace all occurrences of a string
    • Join strings
    • Join strings in string array
    • Join strings in ArrayList
    • Reverse a string
    • Trim string
    • Split string
    • Remove whitespaces in string
    • Replace multiple spaces with single space
    • Comparisons
    • Compare strings lexicographically
    • Compare String and CharSequence
    • Compare String and StringBuffer
  • Java Exception Handling
      StringIndexOutOfBoundsException
  • Java Type Conversions
    • Convert string to int
    • Convert string to float
    • Convert string to double
    • Convert string to long
    • Convert string to boolean
    • Convert int to string
    • Convert int to float
    • Convert int to double
    • Convert int to long
    • Convert int to char
    • Convert float to string
    • Convert float to int
    • Convert long to string