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HashSet In Java

Hashset basic example in java Introduction: A HashSet is a collection of items where every item is unique, and it is found in the java.util package: Example Create a HashSet object called cars that will store strings: import java.util.HashSet; // Import the HashSet class HashSet<String> cars = new HashSet<String>(); Add Items The HashSet…

Java

5 min read

Jun 18

Maximum Product Subarray

Problem Statement: Given an integer array nums, find a contiguous non-empty subarray within the array that has the largest product, and return the product. The test cases are generated so that the answer will fit in a 32-bit integer. A subarray is a contiguous subsequence of the array. TestCase: Example…

Leetcode

1 min read

May 30

Dynamic SQL vs Embedded SQL

SQL: SQL is a structured query language, which is the ultimate computer language, to manipulate and retrieve data stored on a related website. SQL is the standard language for Relational Database Systems. SQL queries can be of two types namely Dynamic SQL and Embedded or Static SQL. What is Dynamic SQL? Dynamic SQL is a…

7 min read

Apr 6

JAVA HASHMAP

Java Hashmap basic programs and important method. INTRODUCTION: In the ArrayList chapter, you learned that Arrays store items as an ordered collection, and you have to access them with an index number (int type). A HashMap however, store items in “key/value” pairs, and you can access them by an index…

Java

4 min read

Apr 6

Linked-list Program

JAVA LINKED LIST-10 basic programs In the previous chapter, you learned about the ArrayList class. The LinkedList class is almost identical to the ArrayList: Program 1:Simple java list program of adding elements. CODE: // Import the LinkedList class import java.util.LinkedList; public class Main { public static void main(String[] args) { …

Java

4 min read

Apr 5

JAVA ARRAYLIST

All in one 10 programs of java arraylist JAVA ARRAYLIST The ArrayList class is a resizable array, which can be found in the java.util package. The difference between a built-in array and an ArrayList in Java, is that the size of an array cannot be modified (if you want to…

Java

3 min read

Mar 24

Java Interface-10 Programs

All details Java through Program JAVA INTERFACE: To declare an interface, use the interface keyword. It is used to provide total abstraction. That means all the methods in an interface are declared with an empty body and are public and all fields are public, static, and final by default. A…

Java

6 min read

Mar 24

Java Inner Example -10 Program

Java Inner Example -10 Program JAVA INNER CLASSES In Java, it is also possible to nest classes (a class within a class). The purpose of nested classes is to group classes that belong together, which makes your code more readable and maintainable. To access the inner class, create an object…

Java

5 min read

Mar 22

Java Packages & API-10 example

Java Packages & API mastery through program Java Packages & API A package in Java is used to group related classes. Think of it as a folder in a file directory. We use packages to avoid name conflicts, and to write a better maintainable code. …

Java

5 min read

Mar 20

Inheritance In Java -10 Program

All concepts of inheritance in java is covered. Inheritance In Java Inheritance in Java is a mechanism in which one object acquires all the properties and behaviors of a parent object. It is an important part of OOPs (Object Oriented programming system). Terms used in Inheritance Class: A class is…

Java

5 min read