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In this article, we will learn to set a JTextArea in Java to wrap text by word, ensuring that the words in the text fit neatly within the display area rather than breaking in the middle. We will create a simple GUI application using JTextArea and configure it to wrap text by word, so the content is more readable within the bounds of the text area. Steps to set JTextArea to wrap by word Following are the steps to set JTextArea to wrap by word − Import the required classes from javax.swing and java.awt for GUI ... Read More
In this article, we will learn how to change a Java Stream into a typed array in Java. By using the toArray() method with a constructor reference, we can ensure that the array has the right type. Problem StatementGiven a Stream of strings, write a Java program to convert it into a typed array and display the elements.Input Stream.of("Bing Bang Theory", "Vampire Diaries", "Game of Thrones", "Homecoming")Output Array...Bing Bang TheoryVampire DiariesGame of ThronesHomecoming Steps to convert the stream to a typed array The following are the steps to covert the stream to a typed array − ... Read More
In this article, we will convert a HashMap to a TreeMap in Java. A HashMap is used for storing data as key-value pairs, but it doesn’t keep the keys in any particular order. A TreeMap sorts the keys in ascending order. By converting a HashMap to a TreeMap, we can ensure that the keys are stored in a sorted way. Problem StatementGiven a HashMap filled with key-value pairs, we need to convert it into a TreeMap so that the entries are sorted by the keys.Input ("1", "A"), ("2", "B"), ("3", "C"), ("4", "D"), ("5", "E"), ("6", "F"), ("7", ... Read More
In this article, we will learn how to check if a String is empty in Java. The isEmpty() method is used to check whether a given string does not contain characters. Problem StatementGiven a string, write a Java program to determine if the string is empty.Input String str = ""Output String is empty: true Steps to check if a string is emptyThe following are the steps to check if a string is empty − Create a string. Use the isEmpty() method to check whether the string has no characters. ... Read More
In this article, we will learn how to create a Duration object in Java based on different time units like days, hours, milliseconds, and minutes, and then convert them into seconds. The Duration class in Java is part of the java.time package and is used to represent a duration of time in a standardized way. Problem StatementGiven time durations in days, hours, milliseconds, and minutes, write a Java program to create Duration objects from these values and calculate how many seconds they represent.Input Duration in days = 10Duration in hours = 10Duration in milliseconds = 10Duration in minutes = ... Read More
In this article, we will learn to use Java to make a file read-only and check if it can still be written. A file can be set to read-only by using the method java.io.File.setReadOnly(). This method requires no parameters and returns true if the file is set to read-only and false otherwise. The method java.io.File.canWrite() is used to check whether the file can be written in Java and if not, then the file is confirmed to be read-only. Problem StatementThe task is to write a Java program that makes the file read-only and then checks whether the file can still ... Read More
In this article, we will discover how we can check whether a value entered is an ASCII 7-bit alphabetic character in Java. This process involves whether a character belongs to the ranges 'a' to 'z' or 'A' to 'Z' in the ASCII table. The character can be checked with some simple if statements to determine if it is in either of these two ranges and then corresponding messages are displayed. Problem StatementGiven a character, write a Java program to check whether the entered value is an ASCII 7-bit alphabetic character or not.Input Initial character = 'r' input = '1'Output Character: ... Read More
In this article, we will explore how to verify whether or not a given character is an uppercase letter and, more specifically, falls within the range of A to Z. This is useful when a user’s input consists of some uppercase letter or when a program needs to restrict itself to uppercase letters. We use concepts such as if-else statements, character comparison, and conditional logic to solve this problem. Problem StatementWe need to write a program that checks if a character falls within the uppercase alphabetic range, which spans from 'A' to 'Z'.Input The input will consist of a single character.Output ... Read More
Historical forex data is crucial for identifying trends, assessing past performance, and making informed predictions in currency markets. Visualizing this data enhances analysis by clearly displaying price movements and patterns, aiding in better decision-making for traders and analysts. This tutorial will guide you through retrieving historical currency data using the TraderMade API and visualizing it in a candlestick chart format with Plotly. Candlestick charts are popular in financial analysis because they provide a clear view of price movements, including open, high, low, and close prices for a specific period. We will use the EUR/USD currency pair data over a specified ... Read More
AI travel and tourism chatbots are the most popular thing in today's world. These chatbots offer personalized, real-time help to guests. With AI-powered chatbots, businesses within this industry can provide more speed efficiency in its service-from booking to customer support or even travel fun. Here are some of the top AI chatbots for travel and tourism: 1. Kayak Chatbot (Kayak Chat) Flight, Hotel, and Car Rental Search: A chatbot on Kayak lets a user search for flights, hotels, and car rentals. Personalized Recommendations: Upon the basis of preferences and past searches, it can be used as a guide on which ... Read More