core java |video 6|English
#corejava #java #javatamil #selenium #javaprogramming #cucumber
#inheritance
INHERITANCE:
??We can access one class property (method) into another class using 'extend' keyword
Without creating multiple object
Advantages
*Object creation gets reduced
*Memory wastage is reduced
*reusable code purpose
Type of inheritance
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1. Single Inheritance
2. Multilevel Inheritance
3. Multiple Inheritances
4. Hybrid Inheritance
5. Hierarchical Inheritance
1. Single Inheritance
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??One parent class is directly support into one child class using extend keyword
2. Multiple Inheritance
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More than one parent going to support a single Child parallely at a time.
Multiple inheritance won’t work in java,due to priority problem,syntax error and it shows compile time error
1.Syntax error: By using extends keyword we cannot extends more than one class
2.Priority issue: Whether the parent classes having the same method means child class will get confused-to give the priority for which parent class method
We can achive multiple inheritance by using Interface
Child extends parent1,parent2--?not possible
3. Multilevel Inheritance
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One child class and more than one parent class
4.Hierarchical Inheritance
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??One parent class and more than one child class
5.Hybrid Inheritance
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Combination of any two inheritance