Skip to main content

What is showInputDialog in Java?

static String showInputDialog(Component parentComponent, Object message) It is used to show a question-message dialog requesting input from the user parented to parentComponent. void setInputValue(Object newValue) It is used to set the input value that was selected or input by the user.

Then, how do you use JOptionPane showInputDialog?

import javax. swing. JOptionPane;

  1. import javax.
  2. To get an input box that the user can type into, we can use the showInputDialog method of JOptionPane.
  3. String first_name;
  4. Double click showInputDialog.
  5. String family_name;
  6. String full_name;
  7. JOptionPane.showMessageDialog( null, full_name );

Subsequently, question is, what does JOptionPane showInputDialog return? JOptionPane. showInputDialog() will return the string the user has entered if the user hits ok, and returns null otherwise. Therefore, you can just check to see if the resultant string is null .

Hereof, what is meant by Swing in Java?

Swing is a set of program component s for Java programmers that provide the ability to create graphical user interface ( GUI ) components, such as buttons and scroll bars, that are independent of the windowing system for specific operating system . Swing components are used with the Java Foundation Classes ( JFC ).

How do you make a JOptionPane?

Creating a JOptionPane : JOptionPane Dialog « Swing « Java

  1. Display a message (through the use of the showMessageDialog method)
  2. Ask for user's confirmation (using the showConfirmDialog method)
  3. Obtain the user's input (using the showInputDialog method)
  4. Do the combined three above (using the showOptionDialog method)

Similar Question and The Answer

What is null in JOptionPane Showmessagedialog?

The "empty" value for a primitive int type would be "0", but the "empty" value for an Object or Component and so on is "null". Therefore, if you don't have any Component to choose, null is what you put there. If you specify a Component there, the Dialog will open on it.

What is JFrame in swing?

JFrame is a class of javax. swing package extended by java. awt. frame, it adds support for JFC/SWING component architecture. It is the top level window, with border and a title bar.

What is JOptionPane?

Java JOptionPane. The JOptionPane class is used to provide standard dialog boxes such as message dialog box, confirm dialog box and input dialog box. These dialog boxes are used to display information or get input from the user. The JOptionPane class inherits JComponent class.

How do you input in Java?

Example 5: Get Integer Input From the User import java. Scanner; class Input { public static void main(String[] args) { Scanner input = new Scanner(System. in); print("Enter an integer: "); int number = input. nextInt(); println("You entered " + number); }

How do I convert a string to an int in Java?

The most direct solution to convert a string to an integer is to use the parseInt method of the Java Integer class. parseInt converts the String to an int , and throws a NumberFormatException if the string can't be converted to an int type.

What are the different types of dialog available in Java?

There are two basic types of dialogs: modal and modeless. Modal dialogs block input to other top-level windows. Modeless dialogs allow input to other windows. An open file dialog is a good example of a modal dialog.

How do you convert an int to a string in Java?

Different ways for Integer to String Conversions In Java Convert using Integer.toString(int) The Integer class has a static method that returns a String object representing the specified int parameter. Convert using String.valueOf(int) Convert using Integer(int).toString() Convert using DecimalFormat. Convert using StringBuffer or StringBuilder. Convert with special radix.

How do I import a Java Util scanner?

Example 2 import java.util.*; public class ScannerClassExample1 { public static void main(String args[]){ String s = "Hello, This is JavaTpoint."; //Create scanner Object and pass string in it. Scanner scan = new Scanner(s); //Check if the scanner has a token. System.out.println("Boolean Result: " + scan.hasNext());

Should I learn swing or JavaFX?

People who are learning Java are being discouraged to learn Swing because Oracle is trying to spread JavaFX among Java developers. Many Java textbooks do not teach Swing anymore. While using Swing is officially discouraged, you should definitely learn JavaFX. It won't hurt if you learn.

What is Java AWT used for?

Abstract Window Toolkit (AWT) is a set of application program interfaces ( API s) used by Java programmers to create graphical user interface ( GUI ) objects, such as buttons, scroll bars, and windows. AWT is part of the Java Foundation Classes ( JFC ) from Sun Microsystems, the company that originated Java.

What is Java Swing used for?

Swing in java is part of Java foundation class which is lightweight and platform independent. It is used for creating window based applications. It includes components like button, scroll bar, text field etc. Putting together all these components makes a graphical user interface.

What is MVC in Java?

MVC stands for Model View and Controller. It is a design pattern that separates the business logic, presentation logic and data. Controller acts as an interface between View and Model. Controller intercepts all the incoming requests. View represents the presentaion i.e. UI(User Interface).

Is Swing used today?

Swing is still used heavily, and will continue to be for a long while -- after all, it was the only choice for Java for a loooong time. JavaFX , however, is refreshingly nice, and very-much-so worth learning.

What are the components of Java Swing?

Swing components are basic building blocks of an application. Swing has a wide range of various components, including buttons, check boxes, sliders, and list boxes. In this part of the Swing tutorial, we will present JButton , JLabel , JTextField , and JPasswordField .

Popular posts from this blog

What does green mean in Hebrew?

Secondary colors and biblical meanings Green is obtained by mixing Yellow (trials) with Blue (Word of God). Therefore, the biblical meaning of color Green is immortality. (The leaf shall not wither –(psa 1:3). Also know, what is the spiritual meaning of the color green? The Meaning of the Color Green Spiritually Effects our ability to express unconditional love, forgiveness and compassion. Green represents abundance, renewal, growth and nature. It is a harmonizing, balancing and calming color . Green is a healing color that gives healing energy to the heart. Additionally, what Green symbolizes? Green is the color of nature. It symbolizes growth, harmony, freshness, and fertility. Green has strong emotional correspondence with safety. Dark green is also commonly associated with money. Also, what do the colors mean in Christianity? White and Gold symbolize the brightness of day. Black is the traditional color of mourning in some cultures. Red evokes the colo...
Read more

What is the actual focal spot in radiology?

Focal spot is the area of the anode surface which receives the beam of electrons from the cathode. It is the apparent source of x-rays . Subsequently, one may also ask, what is the actual focal spot? a circumscribed area or place, usually distinguished by its color; see also macula and tache. actual focal spot the section of a focal spot on which there is intersection of an electron beam with an anode of an x-ray tube. where is the focal spot on ax ray tube? The radiation is produced in a very small area on the surface of the anode known as the focal spot . The dimensions of the focal spot are determined by the dimensions of the electron beam arriving from the cathode. In most x- ray tubes , the focal spot is approximately rectangular. Also question is, what is the difference between actual focal spot and effective focal spot? Refers to the focal spot size when measured directly under the anode target. The actual is measured on the target itself. Actual Focal Spot does N...
Read more

How do I get local weather on dish Weather Channel?

Dish Network subscribers will be able to access local weather from The Weather Channel by going to the News menu on DishHOME ( Channel 100), Dish Network's Interactive Television portal, and selecting TWC Weather . Also question is, how do I get local weather on Weather Channel? The Weather Channel Press the HOME button twice. Select Weather. Highlight the current location. Scroll to the right and select Add Location. Enter ZIP Code or City Name and select your desired result. Select "7 Day," "Next 24," or "Hourly" to see different views of upcoming weather in the selected city or region. Additionally, what happened to the Weather Channel on DISH Network? Weather Channel ON DISH NETWORK - CHANNEL 214 Weather Channel is available on DISH on channel 214. The Weather Channel offers live, 24/7 programming, providing local forecasts to more than 3,000 weather zones with regional and national weather conditions. Also asked, w...
Read more

Why was the Battle of Trenton and Princeton important?

The battles of Trenton and Princeton were a boost to the morale of the patriot cause, leading many recruits to join the Continental Army in the spring. After defeating the Hessians at the Battle of Trenton on the morning of December 26, 1776, Washington withdrew back to Pennsylvania. Likewise, why was the Battle of Trenton important? The surprise victory at Trenton was important to the American cause for several reasons: For the first time, Washington's forces had defeated a regular army in the field. The victory sharply increased morale. New enlistments were stimulated and many of the current soldiers reenlisted. Likewise, why was the Battle of Trenton and Princeton significant? Importance of the Battles of Trenton and Princeton The Continental Army basked in its achievements—at Princeton they had defeated a regular British army in the field. Moreover, Washington had shown that he could unite soldiers from all the colonies into an effective national force. Additionall...
Read more

Where are saguaro cactus found?

Sonoran Desert Similarly, do saguaro cactus grow in New Mexico? The saguaro cactus is the symbol of Arizona and does not grow in New Mexico . Beside above, how can you tell how old a saguaro cactus is? By 95-100 years in age , a saguaro cactus can reach a height of 15-16 feet, and could start to produce its first arm. By 200 years old, the saguaro cactus has reached its full height, reaching upwards of 45 feet tall. Some saguaros have been seen with dozens of arms, while other cactus never produce a single one. Herein, why do saguaro cactus only grow in Arizona? The saguaro cactus can only be found in the Sonoran Desert. Saguaros grow very slowly. Low temperatures and frost can kill a saguaro , so they are not usually found above 4,000 feet. Saguaros have pleats that allow them to expand when they drink water (like an accordion) and contract as they use up their water supply. Where is the largest saguaro cactus? Since 2014, the National Register of Champion Trees lis...
Read more

What is DDL DML and TCL in SQL?

These SQL commands are mainly categorized into four categories as: DDL – Data Definition Language. DQl – Data Query Language. DML – Data Manipulation Language. DCL – Data Control Language. Keeping this in consideration, what are DDL DML TCL commands? DDL, DML, DCL & TCL commands in SQL with syntax & examples Language Command List DDL CREATE DROP ALTER RENAME TRUNCATE DML SELECT INSERT UPDATE DELETE DCL GRANT REVOKE TCL START TRANSACTION COMMIT ROLLBACK Secondly, what is the difference between DDL DML DCL and TCL? DDL is used to create Database objects like Tables , indexe, alter table , adding constraints etc. DML is to add / update or delete Data in Tables it does not deal with changing Objects. DCL is data control language - it's how one grants access to the objects one created with DDL , or stored procedures. Herein, what is DML and DDL in SQL? DDL is Data Definition Language which is used to define data structu...
Read more