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Object Oriented Programming Articles
Page 379 of 589
Find Words which are Greater than given Length k using Stringstream
This is the problem based on stringstream class present in C++ “sstream” header file. Here, we have to find those strings whose lengths are greater than “k”. This task will be performed by using stringstream class. The concept is to partition the string and then iterate through the defined words. The value of length k has to be specified to obtain the words which are larger than k whereas the length of the words which are smaller than k will not be displayed in the output. In this article, we will understand how to find words which are greater than ...
Read MoreLength of Longest Common Subsequence Containing Vowels
In this problem, our task is to find the length of the longest possible subsequence present in two strings such that every letter of the subsequence must be a vowel. With the help of the recursive algorithm and iterative algorithm, the given problem statement can be solved. In English Alphabet, there exist five vowels named 'A', 'E', 'I', 'O', 'U'. Subsequence Vs. Substring: In Subsequence, we may take characters in a non-continuous way, but in Substring, we can take only continuous characters. Ex: In String “TutorialsPoint”: “tri” is a subsequence but not a substring. While “tor” is both subsequence ...
Read MoreRemove Duplicates from a String in O(1) Extra Space
In this problem, our task is to remove all the duplicate characters present in the string other than the first occurrence of every character. Also, it's required to solve the problem without using any extra space, and the Space complexity must be O(1). Various approaches are used in this article. The Boolean array is defined in one approach to determine the repetition of the characters where the index of Boolean array is mapped to each alphabet. In the second approach, the concept of the Bit manipulation is used to remove the repeated characters from the resultant string. Let's explore ...
Read MoreSort Elements on the basis of the Number of Factors
In this problem, our task is to sort the array of integers based on several factors of numbers present in the array as a priority. The array is the best way to store similar types of elements in java. But if the number of factors becomes equal in any two numbers, then as a second priority, this algorithm sees numerical value. Factors are the numbers by which the given number is divisible entirely without leaving any remainder. This article uses various approaches to sort elements based on several factors. To show you some instances Instance-1 If Array = ...
Read MoreWhat does “!” mean in Java?
Introduction Java supports eight types of operators; the “!” operator is one of them. In Java, an operator is a symbol used to execute operations. Operators are entities that can modify the values of operands. Java makes authoring, compiling, and debugging code simple. It is helpful in creating code that can be reused and applications that are modular. It was created with the goal of having a few implementation dependencies as feasible. Let’s discuss in detail about the Java operators, “!” operator and where to use it with some working examples. Java operators Operators in Java are symbols that are ...
Read MoreWhat is meant by object in Java?
Introduction In real life, we can call tables, chairs, lamps, etc. objects as they have some attributes and functions. We can say that anything that has attributes or properties and some functionality like a lamp has a stand and a bulb and it can light up a room so it is an object. In Java also, we have objects and they have their own properties. Objects are basically the instance of the class and the class provides a blueprint for the creation of an object. Let’s have a brief discussion on objects and how to create an object in Java. ...
Read MoreGenerate a String Consisting of Characters ‘a’ and ‘b’ that Satisfy the given Conditions
The task is to generate a string that consists of characters ‘a’ and ‘b’ which satisfies the condition mentioned below: str must have a length of A+B. The character 'a' must appear A times and the character 'b' must appear B times within the string. The sub−strings "aaa" and "bbb" should not appear in str. After generating the string, it should be printed. One possible solution is to first generate a string with all 'a's and 'b's, with 'a' occurring A times and 'b' occurring B times. Then, we can shuffle the string randomly until we find a ...
Read MoreHow to run JavaTuples program in Eclipse?
Tuples in Java are an ordered collection of objects of different types. To run Tuple in Java, you need to upload an external jar file. Here, we will be using Eclipse IDE to create a new Java Project and upload the JavaTuples external jar file. The JavaTuples jar file is to be downloaded. Let us first download the jar file, create an Eclipse project and import the downloaded jar file. Here are the steps − Step 1 − Download JavaTuples Jar library and save it on your system. Open the GitHib link github.com/javatuples/javatuples/downloads and download the “javatuples-1.2-dist.zip” as shown below ...
Read MoreCheck If a Particular File System is Open or Not in Java
In Java, a file system is a hierarchical structure used to organize and store files and directories on a storage device. It provides a standard way to access and manipulate files and directories, regardless of the underlying storage device, such as a hard disk, USB drive, or cloud storage. Java provides the java.nio.file package, which contains classes and interfaces for working with file systems. The FileSystem interface represents a file system, and its FileSystems class provides factory methods for creating instances of FileSystem. You can check if a particular file system is open or not by using the FileSystem ...
Read MoreHow to Convert Char to Int in Java?
In Java, smaller datatype can be converted to bigger datatype. Here, we will see how to convert char datatype to int datatype. The char data type is a single 16-bit Unicode character. It has a minimum value of '\u0000' (or 0) and a maximum value of '\uffff' (or 65, 535 inclusive). The int data type is a 32-bit signed two's complement integer, which has a minimum value of -231 and a maximum value of 231-1. Let's deep dive into this article, to know how it can be done by using Java programming language. For instance Suppose the given ...
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