第 39 节，共 54 节
#59 Upcasting and Downcasting in Java
课时54 节课
- 1#21 Class And Object Theory in Java
- 2#23 JDK JRE JVM in Java
- 3#24 Methods in Java
- 4#25 Method Overloading in Java
- 5#26 Stack And Heap in Java
- 6#27 Need of an Array in Java
- 7#28 Creation of Array in Java
- 8#29 Multi Dimensional Array in Java
- 9#30 jagged and 3D Array in Java
- 10#31 Drawbacks of Array in Java
- 11#32 Array of Objects in Java
- 12#33 Enhanced for Loop in Java
- 13#34 What is String in Java
- 14#35 Mutable vs Immutable String in Java
- 15#36 StringBuffer and StringBuilder in Java
- 16#37 Static Variable in Java
- 17#39 Static Block in java
- 18#38 Static Method in Java
- 19#41 Getters and Setters in Java
- 20#40 Encapsulation in Java
- 21#42 This keyword in Java
- 22#43 Constructor in Java
- 23#44 Default vs Parameterized Constructor in Java
- 24Premium Java and spring boot Courses
- 25#51 This and Super Method in Java
- 26#45 Naming Convention in Java
- 27#46 Anonymous Object in java
- 28#47 Need of Inheritance in Java
- 29#48 What is Inheritance in Java
- 30#49 Single and Multilevel inheritance in java
- 31#50 Multiple Inheritance in Java
- 32#52 Method Overriding in Java
- 33#53 Packages in Java
- 34#54 Access Modifiers in Java
- 35#55 Polymorphism in Java
- 36#56 Dynamic Method Dispatch in Java
- 37#57 Final keyword in java
- 38#58 Object Class equals toString hashcode in Java
- 39#59 Upcasting and Downcasting in Java
- 40#61 Abstract Keyword in Java
- 41#62 Inner Class in Java
- 42#63 Anonymous Inner Class in Java
- 43#64 Abstract and Anonymous Inner Class
- 44#66 Need of Interface in Java
- 45#65 What is Interface in Java
- 46#67 More on Interfaces in Java
- 47#68 What is Enum in Java
- 48#69 Enum if and Switch in Java
- 49#70 Enum Class in Java
- 50#71 What is Annotation in Java
- 51#73 Functional Interface New in Java
- 52#74 Lambda Expression in Java
- 53#75 Lambda Expression with return
- 54#72 Types of Interface in Java