The substring() method of the Java String class is a commonly used string manipulation method. It allows extracting a substring from a larger string by specifying the beginning and ending indices. In this article,...
The trim() method in Java is a vital String function that removes leading and trailing whitespace from a String. In this article, we will explore the purpose and usage of trim() through examples. In...
In Java, string concatenation is a fundamental task that joins multiple pieces of text into a single string. It’s like putting words together in various situations, like crafting friendly messages or building complex data...
In this project, we will create a Logo Maker Application in Java using Swing, Java I/O classes, and the Abstract Window Toolkit. We have tried to add as many Fonts as possible to provide...
Program 1 // Sales Data Analysis package src; import java.awt.*; import java.awt.event.*; import java.sql.*; import javax.swing.*; import javax.swing.table.DefaultTableModel; public class SalesAnalyticsApp extends JFrame { Connection conn; public SalesAnalyticsApp() { // Set up JFrame setTitle(“Sales...
Program 1 class UnderAgeException extends Exception { public UnderAgeException(String message) { super(message); } } public class TestException1 { public static void validateAge(int age) throws UnderAgeException { if (age < 5) { throw new UnderAgeException(“Age...
Program 1 class TestCommand { public static void main(String args[]) { // if(args[0].toUpperCase().equals(args[1].toUpperCase())) if(args[0].equalsIgnoreCase(args[1])) System.out.println(“Same”); else System.out.println(“Not same”); // System.out.println(“Total Arguments: “+ args.length); // System.out.println(“First Argument: “+ args[0].toUpperCase()); // System.out.println(“First Argument length: “+ args[0].length());...
SQL Queries CREATE DATABASE IF NOT EXISTS hospital_db; USE hospital_db; CREATE TABLE IF NOT EXISTS patients ( patient_id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(100), age INT, gender VARCHAR(10), contact VARCHAR(15) ); CREATE TABLE IF...
SQL Queries CREATE DATABASE restaurant_db; USE restaurant_db; CREATE TABLE customers ( customer_id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(100), contact VARCHAR(15) ); CREATE TABLE menu_items ( item_id INT AUTO_INCREMENT PRIMARY KEY, item_name VARCHAR(100), price DECIMAL(10,2)...
Program 1 import java.util.Scanner; public class TicTacToe { static char[][] board = { {‘ ‘, ‘ ‘, ‘ ‘}, {‘ ‘, ‘ ‘, ‘ ‘}, {‘ ‘, ‘ ‘, ‘ ‘} }; public static...
