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CODING
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What is VARIABLE
What is VARIABLE
In programing Variable is USED TO STORE A DATA
What is inheritance in Java?
What is inheritance in Java?
In java inheritance is defines as a sub class is derived from a base class
What are the types of inheritance?
What are the types of inheritance?
Single Inheritance
Multiple Inheritance
Multilevel Inheritence
Hierarchical Inheritance
Hybrid Inheritance
What is Polymorphism in Java ?
What is Polymorphism in Java ?
Polymorphism means the condition of occurring in several dierent forms.
Polymorphism in Java is achieved in two manners
1. Static polymorphism is the polymorphic resolution identied at compile time and is achieved through function overloading whereas
2. Dynamic polymorphism is the polymorphic resolution identied at runtime and is achieved through method overriding
What is an Array?
What is an Array?
.An array is a collection (group) of xed number of items. Array is a homogeneous data structure which means we can store multiple values of
same type in an array but it can’t contain multiple values of dierent types. For example an array of int type can only hold integer values.
What is throws keyword?
What is throws keyword?
a method does not handle a checked exception, the method must declare it using the throws keyword. The throws keyword appears at the end
of a method’s signature.
What are Loops in Java? What are three types of loops?
What are Loops in Java? What are three types of loops?
Looping is used in programming to execute a statement or a block of statement repeatedly. There are three types of loops in Java:
1) For Loops
2)While Loops
3)Do while Loops
What is the dierence between double and oat variables in Java?
What is the dierence between double and oat variables in Java?
In java, oat takes 4 bytes in memory while Double takes 8 bytes in memory. Float is single precision oating point decimal number while Double
is double precision decimal number.
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