Preview Core Java and Coding for Automation Testers

Getting Started with Core Java

7. Write First Program In Java

8. Some Basics Syntax concepts In Java

9. Package In Java - Inbuilt and User Defined

10. Adding Comments to Java Code

11. Command Line Execution In Java

Primitive Data Types In Java

12. Primitive Datatypes - int, long

12.2 Primitive Datatypes - Float, Double, Char, Boolean

13. Primitive Data Types - different Approaches to Declare variables

14. var Datatype - Java 10 onwards

Operators In Java

15. Arithmetic Operators

16. Relational Operators

17. Logical Operators

18. Increment Decrement Operators

19. Assignment Operators

20. Ternary Operator

21. Unary and Binary Operators differences

Conditional Statements in Java

22. If Condition Examples

23. If Else blocks Examples

24. If ElseIf Else Ladder Examples

25. If Else Examples with Boolean values

26. Nested If Else Blocks Examples

27. Switch Case Block Examples

Looping and Jumping Statements in Java

28. While Loop Example - Printing Numbers

29. While Loop - More Examples

30. do While Loop Examples

31. While Vs do While Differences Example

32. for Loop Examples

33. for doWhile and While loops Comparision

34. Jumping Statements - break and continue

Basic Java Programs with Solutions

35. Conditional Statements - 3 programs

36. Reverse an Number

37. Palindrome Number

38. Count Number of Digits In Number

39. Fibonacci Number Series

40. Factorial of Number

41. Generate Random Numbers

42. Swap Numbers without Third Variable

43. Printing Number Patterns

44. Printing Star Patterns

Arrays in Java

45. Arrays Introduction and Types

46. Single Dimensional Arrays Examples

47. Two Dimensional Arrays Examples

48. Different Data types in Arrays using Object class

49. Reverse an Array

50. Arrays Inbuilts methods programs

Java Programs with Arrays

51. Arrays Interview Preparation topics

52. Linear Search Program In Arrays

53. Count Number of Repetitions for Given Number in Array

54. Printing Array values in Reverse order

55. Read Array values from Console using Scanner class

Sorting Algorithms for Arrays

56. Sorting using Inbuilt Method in Arrays

57. Bubble Sort Algorithm for Sorting Array values

Strings Class in Java and inbuilt methods

58. Strings Introduction

59. Strings - length( ) Method

60. Strings - concat( ) Method

61. Strings - trim( ) Method

62. String - charAt( ) Method

63. String - contains( ) Method

64. String - equals( ), equalsIgnoreCase( ), contentEquals( ) Methods

65. String - replace( ) Method

66. String - substring( ) Method

67. String - toUpperCase( ), toLowerCase( ) Methods

68. String - split( ) Method

Advanced Concepts in Java Strings

69. Reverse an String - 4 Approaches ( charAt, toCharArray, StringBuffer, StringBuilder )

70. String vs StringBuffer vs StringBuilder - Immutable and Mutable Objects

71. String Constant Pool (SCP) concept

72. String Comparisions - SCP and HeapMemory - 4 Examples with == and equals differences

73. String inbuilt Method - intern( ) for SCP and HeapMemory

74. String Memory Allocation in Java

75. String vs String Buffer vs String Builder - Differences

Java Programs with Strings

76. Removing Currency symbols and Commas to Extract Number in an Given String

77. Basics on Strings concatenation with Numbers and Strings

78. String Concatenation with Arithmetic Operators

79. Reverse a Given String using charAt( ) method

80. String output for Arrays.toString( ) method

81. Palindrome String

82. Generate Random Numbers And Strings

83. Remove Junk and Special Characters using Regular Expressions in Strings

84. Remove White Spaces in an Given String

85. Reverse Alphabets only in a Given String

86. Anagram program in Strings

87. Pangram program in Strings

88. Count Occurrences of Given Character in a String

89. Count Words in a String

90. Reverse Each Word in a Given String

91. String Program using replaceAll method - Regex

92. Print Numbers from 1 to 100 - without using Numbers in the Code

Classes and Objects in Java

93. OOPS Concepts - Classes and Objects - Theory and differences

94. Class and Object creation syntax in Java

95. Class and Objects creation - Java Program using Main Method in Same Class File

96. Class and Objects creation - Java Program using Main Method in Different Class File

97. Class and Objects Creation - Java Program using Main Method in Another Package

98. Local Variables vs Instance Variables for Objects

99. Creating Multiple New Objects using New Keyword

Methods and Constructors in Java

100. Methods in Java - Theory - basics

101. 4 Different Ways to define Methods in Java

102. Initialize values to the Instance Variables using Object Reference with dot Operator

103. Initialize values to the Instance Variables using Another Method in the Class

104. Using Default Constructor to Initialize Values

105. Using Parameterized Constructor to Initialize Values

106. Method vs Constructor differences

107. Constructor - another coding example with Default and Parameterized

Recursion Algorithm program

108. Recursion Algorithm concepts - print Numbers without Loops

Polymorphism in Java - Overloading concepts

109. Polymorphism concept - Overview Theory

110. Method Overloading Coding Example in Java

111. Constructor Overloading Coding Example in Java

112. Overloading main method Coding Example in Java

Encapsulation in Java

113. Encapsulation Concept - Overview Theory

114. Encapsulation Coding Example in Java

this keyword in Java

115. this keyword Coding Example using Parameterized Constructor

116. this keyword Coding Example using User Defined Method

117. this keyword calling current Class method implicitly

118. this( ) keyword to invoke current Class constructor

119. Constructor chaining using this( ) keyword

static keyword in Java

120. static keyword - Overview Theory

121. static keyword Coding Example - main method within same Class

122. static keyword Coding Example - main Method in a different Class

123. System.out.println( ) - static variable concept

124. Math.random( ) - static method concept

125. static keyword - another Coding Example

126. static methods vs non static methods - calling other members

public static void main - Everything about main method

127. public static void main - Understanding the Method Signature

128. main method - String Array arguments - Execute with Run Configurations in Eclipse

129. main method - String Array arguments - Execute with Command Line

130. main method - different syntax of method signature - Valid and Invalid ways

Inheritance in Java

131. Inheritance in Java - Overview - Theory

132. Inheritance - Simple Coding Example - using Two Classes

133. Types of Inheritance concepts - Theory

134. Multi-Level Inheritance - Coding Example with Three Classes

135. Hierarchical Inheritance - Coding Example with Three Classes

136. Multiple Inheritance - Why it is not supported in Java using Classes

137. Object class - superclass to all classes in Java

138. Single Inheritance - Another Coding Example with Two Variables and Advantages of Inheritance

Method Overriding In Java

139. Method Overriding - Overview - Theory

140. Method Overriding - Coding Example using Bank Classes

141. Method Overriding - usage of Override Annotation

142. Method Overloading Vs Method Overriding - Coding Example

143. Method Overloading Vs Method Overriding - Summary and differences

final keyword in Java

144. final keyword - Overview - Theory

145. final keyword - Coding Example

super keyword in Java

146. super keyword - Coding Example - accessing parent class variable

147. super keyword - Coding Example - accessing parent class method

148. super keyword - Coding Example - accessing parent class Constructor

Abstraction in Java

149. Abstraction - Overview theory

150. Interface concepts - Important points to remember

151. Why we use Interfaces in Software Projects?

152. Writing code for Interface members - Coding Example

153. Implementing Code in Child Class for the Interface

154. Using Interface reference to Call Child Class Object

155. Using extends and implements keywords in Java

156. Functional Interface concept and Coding Example from Java 8 onwards

157. Multiple Inheritance implementation using Two Interfaces

158. Abstract Class concept - Coding Example

159. Abstract Class Vs Interface - Differences

Wrapper Classes in Java

160. Wrapper Classes in Java - Overview theory

161. AutoBoxing and AutoUnboxing for Wrapper Classes

162. Why we use Wrapper Classes in Automation Testing

163. Converting String values to Primitive Data Types using Wrapper Classes

164. Converting Primitive Data Types values to String type

Enum - Enumeration concepts in Java

165. Enum - Enumeration Constants

Simple Date Format in Java

166. Working with Simple Date Format

Access Modifiers in Java

167. Access Modifiers in Java - Overview theory

168. private Access modifier - Coding Example

169. default Access modifier - Coding Example

170. protected Access modifier - Coding Example

171. public Access modifier - Coding Example

Exception Handling

172. Exception Handling in Java - Overview theory

173. Types of Errors in Java Programming

174. Checked vs Unchecked Exceptions - difference

175. Coding Examples for Runtime - Unchecked Exceptions - 4 Examples

176. Handling Unchecked Exceptions using try, catch, finally blocks - Coding Example

177. Exception Handling - Different Cases with try, catch, finally blocks - Coding Example

178. Handling Checked Exceptions using try catch and throws keyword

179. Creating Custom Exception - User Defined Exceptions

180. throw vs throws keywords - differences

JAR Files - Java ARchive

181. JAR files - Creation and Command Line Execution

182. Extracting JAR Files to Retrieve .class Files

Type Casting in Java

183. Type Casting in Java - Overview theory

184. Up Casting and Down Casting for Primitive Data Types

185. Up Casting with Objects using Parent and Child Classes

186. Down Casting with Objects using Parent and Child Classes

187. 3 Rules for Type Casting of Objects

188. Tricky Interview Question - Creating Parent Child Objects and Type Casting

File Handling in Java

189. File Handling - Working with Text Files

Generics in Java

190. Generics - Overview theory

191. Generics Coding Example - One and Two Types

Java Collections - Array List

192. Java Collections - Overview theory

193. Array List in Java - Overview theory

194. Array List - Coding Example - Declaration, Adding Elements, Size

195. Array List - Print, Insert, Modify, Retrieve Specific Index

196. Array List - Retrieve All Elements using 3 different approaches

197. Array List - Removing Elements

198. Array List - Coding Example using Integer Type

Java Collections - HashSet

199. Hash Set - Overview theory

200. HashSet - Adding and Removing Elements

201. HashSet - Converting to ArrayList and Retrieving all Elements

Java Collections - HashMap

202. HashMap - Overview theory

203. HashMap - Put method, Size, Remove, Get value based on Key

204. HashMap - Retrieve All Keys and Values using Enhanced for loop and Iterator

Interview Questions and Java Programs on Collections

205. Collection vs Collections - Differences - Important Interview Question

206. Count Occurrences of Characters in a String

207. Ignore Spaces and Count Spaces in Given String

208. Find Duplicate Elements in Array using HashSet

209. Sorting Array List Values in Ascending and Descending Order

210. Pangram String Program using HashSet

211. String Compression Program using HashMap

Course Notes and Core Java Project Code

CoreJava_Course_Notes

CoreJava_Project_Code

Lambda Expression in Java - Latest Java 8 concepts

01_Lambda_Expression_in_Java_Overview

02_Implementing_Interface_methods_in_Separate_Class

03_Anonymous_Class_concepts_with_ParentInterface_and_ParentClass

04_LambdaExpression_CodingExample_withoutParameters

05_LambdaExpression_CodingExample_with_Parameters

Java_ProjectCode_LambdaExpressionConcepts

LambdaExpression_in_Java_Notes

Preview - Core Java and Coding for Automation Testers - Self Paced