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Step-by-Step Explanation of the Program: Example : The following java program illustrates a method overriding. In object oriented programming, one can provide with the specific implementations of methods to be overridden declared in a superclass. Here in this example we […]

Step-by-Step Breakdown: 1. Declare and Initialize the 2D Array: int arr[][] = {{1, 2, 3}, {2, 4, 5}, {4, 4, 5}}; Here, arr is a 2D array (an array of arrays) of type int. Here’s the way array looks: arr

Step-by-Step Explanation of the Program: Let’s get more up close and personal with this line by line code. 1. Declaration and Instantiation of Array Int a[] = new int[5]; The declaration is making an array named a of type int

Step-by-Step Explanation: Let’s go through the code step by step: 1. Importing Required Classes: Statement in Interpreter import java.util.*; Package imported: java.util.* This package contains classes and interfaces for the following utilities: Hashtable, Map.Entry, Iterator, etc. are used in a

Step-by-Step Explanation: Let’s understand the code in detail, along with the output that is to be generated. Let’s follow step by step. 1. Importing Required Classes: import java.util.*; The java.util.* package is imported because various utility classes like TreeMap, Map.Entry

Step-by-Step Explanation 1. importing the necessary Classes import java.util.*; To support using classes that are in utility library of java such as LinkedHashMap as well as its nested class   Map.Entry by importing the necessary package. 2. Class Declaration class

Step-by-Step Explanation: 1. Importing the Necessary Classes: import java.util.*; This line imports the classes from the java.util package. In this case, we will require the Map, HashMap, and Map. Entry classes to use the map and iterate over its entries.

Step-by-Step Explanation: 1. Importing Required Classes:  import java.util.*;  This line imports necessary classes from the java.util package, including PriorityQueue and Iterator. 2. Class Declaration: class PriorityQueue_TechSarvam { A class PriorityQueue_TechSarvam is declared. This class defines the main() method from where

Step-by-Step Explanation: 1. Importing Required Classes: import java.util.*; This line imports necessary classes from the java.util package. It is required to use classes like TreeSet and Iterator. 2. Class Declaration: class TreeSet_TechSarvam { The class TreeSet_TechSarvam defines that holds the

Step-by-Step Explanation: 1. Imported Package: import java.util.*; It has imported classes that are from java.util, so LinkedHashSet, Iterator etc. 2. Declaring Class class LinkedHashSet_TechSarvam { Declares a class linked to LinkedHashSet_TechSarvam, which has included the main method. It will be

Step-by-Step Explanation: 1. Importing Required Package: import java.util.*; 2. Class Declaration: class TestCollection9 { For the class TestCollection9, it has a main() method. This is how Java programs start. 3. Main Method: public static void main(String args[]) { This is

Step-by-Step Explanation: 1. Class Declaration (Book):  class Book {       int id;       String name, author, publisher;       int quantity; public Book(int id, String name, String author, String publisher, int quantity) {           this.id = id;           this.name = name;           this.author = author;} this.publisher =

Step-by-Step Explanation: 1. Class Declaration: public class LinkedList_TechSarvam { The program consists of a main class named LinkedList_TechSarvam, which would be used to show how a LinkedList is implemented and how elements could be iterated over with an iterator. 2.

Step-by-Step Explanation: 1.  Class Declaration:   class Arrylist_TechSarvam { A class called Arrylist_TechSarvam is declared. This class will contain the code for operating an ArrayList. 2.  Main Method:     public static void main(String args[]) { The main() method is where the entrance

Step-by-Step Explanation 1. Class Declaration: public class StringToDateExample1 { The class StringToDateExample1 is declared. This class will handle converting various date strings into Date objects. 2. Main Method: public static void main(String[] args) throws Exception { The main() method is

Explanation for the above code step-by-step 1. Class Declaration: private class StringToFloatExample { Declares the class StringToFloatExample. This is the main class that contains the logic for converting a string to a float. 2. Main Method: public static void main(String

Explanation for the above code step-by-step 1. Class Declaration: private class StringToFloatExample { Declares the class StringToFloatExample. This is the main class that contains the logic for converting a string to a float. 2. Main Method: public static void main(String

Step-by-Step Explanation 1.  Class Declaration: The declaration of class StringToLongExample. This is the main class, with the conversion logic of the string to long. 2.  Main Method: 3. Declaring Strings: String s = “9990449935”; 4. Converting String to Long: long

Step-by-Step Explanation 1. Class Declaration: public class IntToStringExample1 { The class IntToStringExample1 is declared. This class contains the main method where the program logic resides. 2. Main Method: public static void main(String args[]) { The main() method is the entry

Step-by-Step Explanation 1. Class Declaration: public class StringToIntExample { The class StringToIntExample is declared. This is the main class containing the main method where the logic of the program resides. 2. Main Method: public static void main(String args[]) { The

Step-by-Step Explanation 1. Import Statement: import javax.swing.*; This import statement brings into the program javax.swing.* package. This package brings in a myriad of Swing components such as JFrame, JButton, JTextArea, JButton, JTextField etc Swing components are basically used to generate

This program discusses how to employ the Choice class with Java’s Abstract Window Toolkit. It creates an application with an easy GUI whose dropdown menu features several items in it. Step-by-Step Explanation 1. Import Statement: import java.awt.*; At the beginning,

This Java program shows how a GUI application is created using the AWT library with a TextArea component. A window with a TextArea is constructed for a multi-line text input or display. Now, let us go through the program in

This is a Java program that shows how to use Label components in a simple GUI using the AWT (Abstract Window Toolkit) library. The program creates a frame and adds two labels to it. Let’s break down the program step

This Java program creates a simple graphical user interface (GUI) with a button using the AWT (Abstract Window Toolkit) library. Let’s go through it step by step. 1. Importing AWT Package import java.awt.*; This imports the AWT package, which contains

1. Import Statements import java.io.*; import java.net.*; These are imports required for this program. Import java.net.* enables classes like InetAddress, which offers functionality to work with networking such as retrieval of IP address, whereas import java.io.* is done; however, no

Step-by-Step Explanation: 1. Class Declaration: class Methods { ‘Class Methods’ is declared with the existence of a constructor, a static method, non-static method, and the main method. 2. Constructor Method: Methods() System.out.println(“Constructor method is called when an object of it’s

Step-by-Step Breakdown: 1. Class and Method Declaration: public class StringLowerExample  {     public static void main(String args[])       { 2. String Initialization: String s1 = “TechSarvam by Rajendrasarvam HELLO stRIng”; 3. Using toLowerCase() Method: String s1lower = s1.toLowerCase(); The string s1lower after

First Method: Using Reverse String Comparison Let’s break down the first approach where the string is reversed and compared with the original string. 1. Class Definition: class Palindrome The class Palindrome is declared. Here, the main method will be defined.

Step-by-Step Breakdown: 1. Class and Method Declaration: public class StringTrimExample  {    public static void main(String args[])  { 2. String Declaration: String s1 = ” hello string\t”; 3. Print Without Using trim() System.out.println(s1 + “TechSarvam”); 4. Using trim() Method: System.out.println(s1.trim() +

Step-by-Step Breakdown: 1. Class Declaration: public class SplitExample  {    public static void main(String args[])     { 2. String Declaration String s1 = “java string split method by TechSarvam”; 3. Using split() Method String[] words = s1.split(\\\\\\\\s); [java, string, split, method, by,

Step-by-Step Breakdown: 1. Class and Method Declaration: public class ReplaceAllExample2  {     public static void main(String args[])      { 2. String Declaration: String s1 = “My name is Rajendra. My name is Sarvam. My name is TechSarvam.”; A String variable s1 is

Step-by-Step Explanation 1. Class and Method Declaration: public class IndexOfExample  { public static void main(String args[])  { 2. String Declaration: String s1 = “this is index of example”; A string variable s1 is declared and initialized with value “this is

Step-by-Step Breakdown: 1.  Class and Main Method Declaration: class StringEndwith  {             public static void main(String args[])  { 2. Declaration of the String String s1 = “java by TechSarvam”; The variable s1 is declared and initialized with the string “java by

Here’s a step-by-step explanation of the program: 1. Class and Method Declaration: public class LastIndexOfExample {     public static void main(String args[]) {  2. String Declarations: String s1=”hello”; String s2=”hello”; String s3=”meklo”; String s4=”hemlo”; Four String variables are declared: 3. compareTo()

Step-by-Step Breakdown 1. Importing the Scanner Class: import java.util.Scanner; This imports the Scanner class to accept user input from the console. 2. Class and Main Method: class TransposeAMatrix {      public static void main(String args[]) The program has been encapsulated in

Step-by-Step Explanation: 1. Scanner Class Import: import java.util.Scanner; This imports the Scanner class, which the program will use to read user input. 2. Class and method Definition: class MatrixMultiplication {     public static void main(String args[]) 3. Declarations of Variables: int

Step-by-Step Explanation: 1. Importing Scanner Class: import java.util.Scanner; This imports the Scanner class from java.util to read from the user. 2. Class Definition: class AddTwoMatrix A class AddTwoMatrix is declared that contains the main method from where the program execution

Class 1: ReverseString (Manual Method) This class explains how one could reverse a string manually character by character using a for loop. Step-by-Step Explanation: 1. Importing Scanner Class:  import java.util.*; This imports the Scanner class, which is used to take

Step-by-Step Explanation: 1. Import Scanner Class:    import java.util.Scanner; – The Scanner class is imported to permit input from the user through the console. 2. Class Definition:    class SubstringsOfAString    – A class called SubstringsOfAString is defined. In the class lies the

Code Breakdown: 1. Importing Scanner Class: import java.util.Scanner; Scanner class is declared to scan for the input from the user. 2. Class Definition: class FloydTriangle Here, a class FloydTriangle is declared. The class contains the main method where the execution

Code Breakdown: 1. Importing Scanner Class: import java.util.Scanner; This imports the Scanner class, which is used to take input from the user. 2. Class Definition: class ArmstrongNumber The class ArmstrongNumber contains the main method, where the program execution starts. 3.

Code Breakdown: 1. Importing the Scanner Class:  import java.util.*; It brings in the Scanner class because it has to read input from the user. 2. Class Declaration: class PrimeNumbers This declares a class named PrimeNumbers. The main method is inside

Code Explanation: 1. Scanner Class Import: import java.util.Scanner; This imports the Scanner class, which is used to read input from the user. 2. Class Definition: class Tables This defines a class named Tables. Inside this class is the main method,

Part-1: For Each Loop with an Integer Array primes[] Code Explanation 1. Declaring the class class EnhancedForLoop It declares a class called EnhancedForLoop. The main method is the starting point for the program to run. 2. Main Approach: This is

Code Analysis: 1.  Class Definition: class Alphabets This defines a class named Alphabets. A class is the template by which objects are created in Java; however, in the code below, the class only exists to run a program from within

Code Breakdown 1. Scanner Class Importation: This line imports the Scanner class, which is needed to read input from the user. 2. Class Definition: class BreakContinueWhileLoop This is the definition of the class called BreakContinueWhileLoop. 3. Main Method: public static

Code Breakdown: 1. Importing Scanner Class: import java.util.Scanner; This imports the Scanner class, which is part of the Java standard library and is used to take input from the user. 2. Class Definition: class BreakWhileLoop This defines a class named

Step-by-Step Explanation: 1.  Import the Scanner Class: import java.util.Scanner; The Scanner class is imported to read input from the user. 2. Class Declaration: class ReverseNumber { This declares a class named ReverseNumber that contains the main method, which will execute

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Step-by-Step Explanation 1.  Import the Scanner Class: Import java.util.Scanner; In the code, the Scanner class in java.util is imported to enable the user’s input into the program. 2. Class Declaration: class WhileLoop { The program consists of a declared class

Step-by-Step Explanation: 1. Class Declaration: class Stars { A class named Stars is declared. This class contains the logic to print the star pattern. 2. Main Method Declaration: public static void main(String[] args) { The main method is the entry

Step-by-Step Explanation: 1. Import Scanner Class: import java.util.Scanner; The Scanner class from java.util is imported so that it can read what the user inputs. 2.  Class Declaration: class CompareStrings { A class called CompareStrings is declared, consisting of the logic

Let’s have both programs presented. The first one calculates the factorial for an integer using a simple loop in case the number is not too large, and the second one, which is pretty much the same computation, uses the BigInteger

Step-by-Step Explanation: 1. Import Scanner class:  import java.util.Scanner;  It is used to import the Scanner class from java.util package. This class reads input from users. 2. Class Declaration: class OddOrEven Declare a class named OddOrEven, that holds the logic to

Let’s walk through the Java code given below with a step-by-step explanation for each part of the code. Step-by-step Explanation: 1. Importing the ‘Scanner’ class: import java.util.Scanner; Allows us to take input from the console using the ‘Scanner’ class from

Let’s walk through the Java code given below with a step-by-step explanation for each part of the code. Step-by-step Explanation: 1. Importing the ‘Scanner’ class: import java.util.Scanner; Allows us to take input from the console using the ‘Scanner’ class from

Step-by-Step Explanation: 1. Import Scanner class: import java.util.Scanner; This class imports the Scanner from the java.util package, which helps read the input of the user. 2. Class Declaration: class IfElse { The class IfElse is declared here. This class holds

Step-by-Step Explanation: 1. Class Declaration:  class Condition {  It declares a class named ‘Condition’. It is the class that will contain the logic of the program, which is to check the condition using a boolean variable. 2. Main Method: public

Let’s go line by line through the Java program, LargestOfThreeNumbers, to see how it works, then demonstrate the output. Step-by-Step Explanation: 1.  Import the class of Scanner type: import java.util.Scanner; The Scanner class is imported from the java.util package, allowing

Let’s have a look at two programs. One adds two integers, the other uses BigInteger to add large numbers. Explanation of AddNumbers Step-by-Step 1. Import the Scanner class:   Import java.util.Scanner; This statement imports the Scanner class from the package java.util

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