What is the purpose of JTable?
The JTable class is a part of Java Swing Package and is generally used to display or edit two-dimensional data that is having both rows and columns. It is similar to a spreadsheet. This arranges data in a tabular form.
What is JTable in swing?
The JTable class is used to display data in tabular form. It is composed of rows and columns.
How fetch data from database to JTable in Java?
What is JTable
- DisplayEmpData.java.
- emp.sql.
- Open the NetBeans IDE.
- Choose “Java” -> “Java Application” as in the following.
- Now type your project name as “JTableApp” as in the following.
- Now create a new Java Class with the name “DisplayEmpData” and provide the following code for it.
How can you change the appearance of data in cells in JTable?
We can change the background and foreground color for each column of a JTable by customizing the DefaultTableCellRenderer class and it has only one method getTableCellRendererComponent() to implement it.
What methods does JTable implement?
Methods of JTable class
Methods | Description |
---|---|
public TableModel getModel() | Gets the TableModel whose data is displayed by JTable. |
public int getRowCount() | Gets the current total number of the rows in the JTable. |
public int getColumns() | Gets the current total number of the columns in the JTable. |
How many panels can be added in a frame?
There is no limit on the number of panels to be added on the JFrame. You should understand that they all are containers when seen on a higher level.
What is JTable in Java?
The JTable is used to display and edit regular two-dimensional tables of cells. See How to Use Tables in The Java Tutorial for task-oriented documentation and examples of using JTable .
What is the superclass of JTable component?
Answer: Swing’s Lightweight GUI Components is the name of the superclass of JTable.
How do you query a database in Java?
STEP 1: Allocate a Connection object, for connecting to the database server. STEP 2: Allocate a Statement object, under the Connection created earlier, for holding a SQL command. STEP 3: Write a SQL query and execute the query, via the Statement and Connection created. STEP 4: Process the query result.
How can we fetch data from database and display HTML table in Java?
Program to display data from database through servlet and JDBC
- import java.io.*;
- import javax.servlet.*;
- import javax.servlet.http.*;
- import java.sql.*;
- public class display extends HttpServlet.
- {
- public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException.
- {
Is JTable editable?
With the JTable class you can display tables of data, optionally allowing the user to edit the data.
Is cell editable JTable?
The isCellEditable() method of JTable (or the TableModel) controls whether a cell is editable or not. By default it just return “true”. So you can override the method to return a boolean value that is set by your “Modify” button.
What is Java list Swing?
JList is part of Java Swing package . JList is a component that displays a set of Objects and allows the user to select one or more items . JList inherits JComponent class. JList is a easy way to display an array of Vectors .
Are solar frames good?
A-frame houses are perfect for roof-mounted solar panels – the 60° angle means you have a lot of space, and the panels will be quite well positioned to absorb as much sunlight as possible – especially in the winter. That’s true, at least, for people at higher latitudes.
What are the three parts of a frame and panel?
The vertical members of the frame are called stiles while the horizontal members are known as rails. A basic frame and panel item consists of a top rail, a bottom rail, two stiles, and a panel.
How do you display data in Java?
What is SQL query in Java?
SQL (Structured Query Language) is used to perform operations on the records stored in the database, such as updating records, inserting records, deleting records, creating and modifying database tables, views, etc.
How do I run a JDBC program in eclipse?
- Step 1: Create an Eclipse Project. A project in Eclipse is essentially a folder containing all the source code and other files you need to build your program.
- Step 2: Install the Connector/J JDBC driver.
- Step 3: Set up a simple database program.
How show data from database in HTML?
Display Data in an HTML Table Using PHP & MySQL
- Connect PHP to MySQL Database.
- Insert Data Into PHPMyAdmin Table.
- Fetch Data From MySQL Table.
- Display Data in HTML Table.
- Test Yourself to insert data.
How can we retrieve data from database and display in HTML?
Use the following steps for fetch/retrieve data from database in php and display in html table:
- Step 1 – Start Apache Web Server.
- Step 2 – Create PHP Project.
- Step 3 – Execute SQL query to Create Table.
- Step 4 – Create phpmyadmin MySQL Database Connection File.
- Step 5 – Create Fetch Data PHP File From Database.
Is JTable editable by default?
The isCellEditable() method of JTable (or the TableModel) controls whether a cell is editable or not. By default it just return “true”.
How do I make a JTable editable?
Complete code
- import javax.swing.DefaultCellEditor;
- import javax.swing.JComboBox;
- import javax.swing.JFrame;
- import javax.swing.JScrollPane;
- import javax.swing.JTable;
- import javax.swing.table.AbstractTableModel;
- import javax.swing.table.TableModel;
- public class EditableTable.
How do you make a JTable not editable in Java?
You can use a TableModel . Then use the setModel() method of your JTable . You can’t have a public void method return a boolean.
…
- This is the best and easiest answer.
- This works great with single selection.
- This should be the ANSWER!
How do I create a list in swing?
JList is part of Java Swing package .
Constructor for JList are :
- JList(): creates an empty blank list.
- JList(E [ ] l) : creates an new list with the elements of the array.
- JList(ListModel d): creates a new list with the specified List Model.
- JList(Vector l) : creates a new list with the elements of the vector.
What is listbox in Java?
The object of JList class represents a list of text items. The list of text items can be set up so that the user can choose either one item or multiple items. It inherits JComponent class.