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Articles by Smita Kapse
Page 21 of 39
Java Program to insert styled text in a JTextPane Component
In this article we will learn to insert styled text into a JTextPane component in Java. The JTextPane component is a versatile text editor that supports rich text features, including the ability to style text with different fonts, colors, and sizes. By leveraging the StyledDocument and Style classes, you can insert styled text dynamically into a JTextPane using Java Swing. Insert styled text in a JTextPane component using the SimpleAttributeSet and StyleConstants classes. With that, we will also use StyledDocument. Java Swing The Swing API is a collection of flexible GUI components designed to simplify the development of Java-based front-end ...
Read MoreJava program to set JTextArea to wrap by word
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 MoreJava DatabaseMetaData getMaxStatements() method with example.
In this article, we will learn how to retrieve the maximum number of open statements allowed by a database using the DatabaseMetaData interface in Java. The getMaxStatements() method of the DatabaseMetaData interface is used to find out the maximum number of open statements (objects) that the underlying database allows at one time. This method returns an integer value, representing the maximum number of statements that are allowed to be open at a time. If this value is 0 it indicates that there is no limit or, the limit is unknown. Problem StatementGiven a connection to a database, write a ...
Read MoreJava DataBaseMetaData getMaxCatalogNameLength() method with example.
In this article, we will learn how to retrieve the maximum number of characters allowed in a catalog name using the getMaxCatalogNameLength() method in Java. This method belongs to the DatabaseMetaData interface, which provides comprehensive information about the database, including its structure and capabilities. The method is useful for understanding the limitations imposed by the underlying database in terms of catalog name length. Problem StatementGiven a connection to a database, write a Java program to retrieve and display the maximum number of characters that the database allows for catalog names using the getMaxCatalogNameLength() method.Input A MySQL database connection URL, ...
Read MoreJava program to set the height of only a single row in a JTable with multiple rows
In this article, we create a JTable in Java Swing to display information about different programming technologies and their tutorial availability. The table is set up with specific columns and rows, each containing data on a particular technology. We also demonstrate how to set a custom height for a single row in the table. Specifically, the height of the 4th row is adjusted to 30 pixels to show how you can control row height individually in a JTable. The table is then displayed within a scrollable JFrame window. table.setRowHeight(3, 30); The above sets row height to 30 pixels for row index ...
Read MoreJava program to paste clipboard text to JTextArea
In this article, we will learn to paste clipboard text into a JTextArea using Java. We'll use the paste() method to create a simple program that lets users insert clipboard content directly into a text area. The program will display a basic GUI window with a JTextArea, where any text copied to the clipboard can be easily pasted. Steps to paste clipboard text to JTextArea Following are the steps to paste clipboard text to JTextArea − First, import necessary classes from packages like javax.swing and java.awt to create the GUI components. Create a ...
Read MoreJava program to place component in bottom-right corner with BorderLayout
In this article, we will learn how to place a component, specifically a button, in the bottom-right corner of a Java Swing application using the BorderLayout manager. The BorderLayout is one of the most commonly used layout managers in Java, and it allows you to place components in five different regions: North, South, East, West, and Center. We will demonstrate how to use BorderLayout to ensure the component is placed precisely in the bottom-right corner of the window. Steps to place the component in the bottom-right corner Following are the steps to place the component in the bottom-right corner with ...
Read MoreJava program to set horizontal alignment of content in a JTextField
In this article, we will learn how to set the horizontal alignment of content in a JTextField class using Java Swing. The content in the JTextFile is by default left aligned, but you can change it using the setHorizontalAlignment() method. Steps to Set Horizontal Alignment of Content in a JTextField Following are the steps to set the Horizontal Alignment of content in a JTextField − Import the required Java Swing packages. Create a JFrame and set layout manager. Create JLabel and JTextField then set horizontal alignment. ...
Read MoreHow to Write/create a JSON array using Java?
A JSON array is an ordered collection of values that are enclosed in square brackets i.e., it begins with '[' and ends with ']'. The values in the arrays are separated by ', ' (comma).Sample JSON array{ "books": [ Java, JavaFX, Hbase, Cassandra, WebGL, JOGL] }The JSON-simple is a light weight library which is used to process JSON objects. Using this you can read or, write the contents of a JSON document using Java program.JSON-Simple maven dependencyFollowing is the maven dependency for the JSON-simple library − com.googlecode.json-simple json-simple ...
Read MoreHow to avoid thread start twice in android?
Before getting into an example, we should know what thread is. A thread is a lightweight sub-process, it going to do background operations without interrupt to ui. This example demonstrate about How to avoid thread start twice in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken edittext and textview. When user enter some text into edittext, it going to wait ...
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