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Bubble sorting and Linear sorting are the easiest methods of sorting. Also they are the least optimized sorting algorithms. First we are going to look at bubble sorting in java. In Bubble sort each element is compared with its next element, if the element is greater than the next element then they are swapped. This … Read more
Sorting is the process through which elements can be arranged in ascending or descending order. Sorting can be done on numbers, strings etc. In Java inbuilt functions are also available to directly sort the series. These inbuilt functions are provided by Collections framework in Java. Example :- Unsorted series = 24, 20, 100, 203, 1, … Read more
In multiple inheritance a single class extends from more than one class. But Java does not support multiple inheritance among classes. Multiple inheritance in Java is possible with Interface. Let us understand with help of diagram about multiple inheritance : Class A is inheriting from class B and class C at the same time. Why … Read more
In Hierarchical inheritance a class is inherited by more than one classes. Let us take a look at the diagram: In the above diagram we can see that class B and class C is inheriting from the same class A which is called Hierarchical Inheritance in Java. Let us look at an example to understand … Read more
In multilevel inheritance a parent class is extended by child class and this child class is again extended by another class. Let us understand with help of a diagram: Above diagram shows an example of multilevel inheritance. Class B extends class A and class C extends class B. Let us look at the java code … Read more
This is most basic type of inheritance. In single level inheritance the child class is derived from its parent class only. We can see from above image that class B is being derived from class A. This scenario is called single level inheritance. Let us understand with help of Java code: Output In above code … Read more
Inheritance is the way through which a class acquires all the properties and members of other class. Inheritance represents the IS-A relationship. The class acquiring the properties is called child class and the class from which properties are acquired is called parent class. We make use of ‘extends‘ keyword for inheritance. With inheritance the child … Read more
Constructor chaining is the way through which a constructor make a call to another constructor. Constructor chaining can be done in 2 ways: Output In the above code we called Example2() constructor for object creation which in turn calls Example2(int age) constructor using this(29). Now inside Example2(int age) constructor a call is made to Example2(int … Read more
Constructor overloading is the way through which multiple constructors can be defined within the class by changing the arguments of the signature. Let us understand this with an example: Output In the above code we have overloaded the constructor by changing the number of parameters in signature. We can use any constructor for creation of … Read more
Parameterized constructor can be made by the user if they want to assign some value to instance variable at time of creation of object. Parameterized constructors are also a good way to perform some operations that are to be performed at the start such as Database connections, pre-checks on values of instance variables or certain … Read more