what are awt controls in java?
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Introduction to Java AWT Controls. Java AWT controls are the controls that are used to design graphical user interfaces or web applications. To make an effective GUI, Java provides java.
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Applets will be downloaded at the client web browser and executed locally where as swing has a set of APIs for developing GUI components and can act as stand alone applications. Short answer: Applets are intended to be small bits of functionality run in a web browser and downloaded on-demand.
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['#includeEdit. ... ', '#pragmaEdit. ... ', '#defineEdit. ... ', 'macrosEdit. ... ', '#errorEdit. ... ', '#warningEdit. ... ', '#undefEdit. ... ', '#if,#else,#elif,#endif (conditionals)Edit.']
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Java programs are frequently asked in the interview. These programs can be asked from control statements, array, string, oops etc. Java basic programs like fibonacci series, prime numbers, factorial numbers and palindrome numbers are frequently asked in the interviews and exams.
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You can declare variables to be of the user-defined type, but with an ADT, you're not supposed to directly manipulate the value(s) stored in it. Only the procedures you set up for it are supposed to do that. What is the advantage of declaring abstract class as a data type in java?
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['Select File > New > Other... from the Eclipse menu.', 'Browse to Java > Class and click the Next button.', 'In the New Java Class dialog, enter the following: ... ', 'Open the new Operation. ... ', 'Add the following instance variables (future persistent fields) to the class:']
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['Bound control A control whose source of data is a field in a table or query is called a bound control. ... ', "Unbound control A control that doesn't have a source of data (such as a field or expression) is called an unbound control."]
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['Sequential: default mode. ... ', 'Selection: used for decisions, branching -- choosing between 2 or more alternative paths. ... ', 'Repetition: used for looping, i.e. repeating a piece of code multiple times in a row.']
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['private void jButtonImportActionPerformed(java.awt.event.ActionEvent evt) {', 'String filePath = "C:\\\\Users\\\\Desktop\\\\table.txt";', 'File file = new File(filePath);', 'try {', 'BufferedReader br = new BufferedReader(new FileReader(file));', 'String firstLine = br.readLine().trim();']
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JavaFX is IMO very easy to use, much more so than Swing. It is my go-to for making UIs in Java. It looks nice, and is fast. I think learning it is very useful if you plan to make Java-apps, however if you plan to make only web based apps then learning HTML/CSS/JS is better.
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['if (string.IsNullOrEmpty(inputString))', 'return false;', 'for (int i = 0; i < inputString.Length; i++)', 'if (!char.IsLetter(inputString[i]))', 'return false;', 'return true;']
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AppletViewer is a standalone command-line program from Sun to run Java applets. ... An Applet viewer creates an environment that mocks the look and feel of a stand-alone program with no interaction with a web browser, even though it does involve a browser to run an applet.
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['You can suppose off a dialog as a straightforward pop-up window which will show a warning or maybe asks for a confirmation. ... ', '3 - Nothing appeared on your screen, you are doing right! ... ', '6 - Right click your OK button and choose action>actionPerformed below events.']
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['import javax.swing.*;', 'public class OptionPaneExample {', 'JFrame f;', 'OptionPaneExample(){', 'f=new JFrame();', 'String name=JOptionPane.showInputDialog(f,"Enter Name");', '}', 'public static void main(String[] args) {']
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['JavaScript local/global scope.', 'JavaScript local/global scope (arrow functions)', 'JavaScript IIFE (Immediately Invoked Function Expression)', 'JavaScript IIFE (arrow functions)', 'Model-view-controller design-pattern.', 'Model-view-controller design-pattern (arrow functions)', 'Async and Await promises.']
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['Java Platform, Standard Edition (Java SE)', 'Java Platform, Enterprise Edition (Java EE)', 'Java Platform, Micro Edition (Java ME)', 'JavaFX.']
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['Create a class that extends JFrame .', 'Create a new JTextField .', 'Use setEditable(false) that sets the specified boolean to indicate whether or not this textfield should be editable.', 'Use add to add the field to the frame.']