69. Inheritance Example

This video shows an example of inheritance in Java. Create a Shape superclass and extend a Rectangle from it. Create a Square that extends from the Rectangle. Add a display() method and a getArea() method to the Shape class. We can access these methods from the object of a Square or Rectangle as these methods are inherited.

Course Cirriculum

Setup Java

• 1. Install Java On Windows 04:31
• 2. Install IntelliJ IDEA On Windows 06:24
• 3. Install Java JDK On Mac 03:05
• 4. Install IntelliJ IDEA On Mac 05:55
• 5. Memory Organization And Data Hierarchy Explained 06:41
• 6. Hello World Explained 02:49
• 7. Hello World Example 06:40
• 8. Steps To Run A Java Program 04:36

Data Types

• 9. Variables And Constants Explained 03:37
• 10. Variables And Constants Example 07:27
• 11. Typecasting Explained 02:09
• 12. Typecasting Example 06:47

Operators

• 13. Arithmetic Operators Explained 02:11
• 14. Arithmetic Operators Example 04:25
• 15. Relational Operators Explained 02:32
• 16. Relational Operators Example 06:11
• 17. Assignment Operators Explained 02:00
• 18. Assignment Operators Example 02:36
• 19. Increment Decrement And Logical Operators Explained 03:40
• 20. Increment Decrement And Logical Operators Example 04:52

Conditional Statements

• 21. If Else Explained 04:16
• 22. If Else Example 05:09
• 23. Ternary Operator Explained 01:01
• 24. Ternary Operator Example 01:31
• 25. Switch Statement Explained 02:05
• 26. Switch Statement Example 05:44

Loops

• 27. For Loop Explained 06:26
• 28. For Loop Example 08:45
• 29. While Loop Explained 04:29
• 30. While Loop Example 04:21
• 31. Do While Explained 02:53
• 32. Do While Example 02:14
• 33. Break Statement Explained 03:02
• 34. Break Statement Example 06:57
• 35. Continue Statement Explained 02:20
• 36. Continue Statement Example 02:44

Strings

• 37. String Explained 11:09
• 38. String Example I 08:10
• 39. String Example II 07:11
• 40. String Builder And String Conversions Explained 06:56
• 41. String Builder And String Conversions Example 06:08

Methods

• 42. Methods Explained 05:09
• 43. Types Of Methods 04:50
• 44. Methods Example 06:02
• 45. Method Overloading And Variable Scope Explained 05:54
• 46. Method Overloading And Variable Scope Example 08:43

Arrays

• 47. Arrays Explained 08:16
• 48. Arrays Example 12:49
• 49. Multidimensional Arrays Explained 03:36
• 50. Multidimensional Arrays Example 07:24

Object Oriented Programming

• 51. Classes And Objects Explained I 06:07
• 52. Classes And Objects Explained II 10:16
• 53. Classes And Objects Example 10:12
• 54. Take Input From User Explained 05:21
• 55. Take Input From User Example 12:36
• 56. ArrayList Explained 08:46
• 57. ArrayList Example 12:06
• 58. Call By Value Vs. Call By Reference Explained 07:19
• 59. Call By Value Vs. Call By Reference Example 02:28
• 60. Constructors And Overloading Explained 06:26
• 61. Constructors And Overloading Example 05:09

Inheritance

• 62. Static Keyword Explained 07:30
• 63. Static Keyword Example 09:47
• 64. Enumeration Explained 07:27
• 65. Enumeration Example 07:33
• 66. This Keyword And Variable Hiding Explained 08:23
• 67. This Keyword And Variable Hiding Example 07:05
• 68. Inheritance Explained 06:23
• 69. Inheritance Example 02:20
• 70. Super Keyword And Method Overriding Explained 08:24
• 71. Super Keyword And Method Overriding Example 11:02
• 72. Polymorphism With Classes Explained 05:05
• 73. Polymorphism With Classes Example 26:13