Learn OOPs concepts using Java with 1 real-life program example. You can also DOWNLOAD pdf FREE! ALL oops features used in this program are explained.
Big-O notations are used to represent Space or Time complexities of algorithms. There’re more notations such as Theta and Omega. But we’ll restrict the discussion to the frequently used Big-O notation. Here are some terminology and complexity in Big-O notations you should keep in mind. BIG-O NOTATIONS – GRAPHICAL – YOU ALREADY KNOW IT If … Read more BIG-O NOTATIONS
The time complexity of linear search is O(n). In the best case its time complexity is O (1). In the linear search, you search an element in a list sequentially until you find that element. For example, Suppose you want to find the element 2 in the given list below. You have to traverse the … Read more Time complexity of linear search
Time complexity of for loop can be anything O(1), O(n), O(log n) depending upon the loop conditions and code you write. Time complexity of for loop with various scenarios. a) Every time you run this loop; it will run 10 times. In other word, this for loop takes constant time. So, the time complexity will … Read more Time complexity of for loop – O(1) O(n) and O(log n)
You can measure method execution time in java using the method System.nanoTime() or System.currentTimeMillis(). Put this method before and after the method or piece of code for which you want to measure the running time. Find the difference of the time you got before and after your code. The difference is the running time. Method … Read more how to measure method execution time in java
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Java OOP exercise to learn how to create class and methods by reading requirements. Exercise-1: Create a class Dog, that has 3 properties (class fields) breed, age and colour with behaviours (class method) bark and sleep. Exercise-2: There is a car, which has attributes model and price, and the car has functionalities start, stop and … Read more Creating Class and methods – Java OOP Exercise
Did you finish learning Java OOPs Concepts? Check your level with tricky Coding & Conceptual OOP questions – Master and Get Ready for writing industry-level application in no time with the book OOP Concepts Booster! (Try these 5 Coding and 15 Conceptual Questions!) Coding OOP Questions: Q-1) Below is a bank user account class. The … Read more Check Your Java OOPs Concepts Skills and Master it Quickly
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2 methods to calculate distance between two points in java with code example. 1- Using formula. 2- Using a Point class objects. Distance between two points using formula We know that the distance between two points (x1,y1) and (x2,y2) on a flat surface is as below. That we’ll use in the java program to find … Read more Distance between two points in java