Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>For this:</p> <blockquote> <p>would prefer not to have to write out a listener for every button</p> </blockquote> <p>Create a method that accept the <code>JPanel</code> as the parameter and then iterate to each component in <code>JPanel</code>, add the action listener if the component is <code>JButton</code></p> <p>This one:</p> <pre><code>I was wandering if I could just get the text contained in the button. </code></pre> <p>Just set the value in the <code>JLabel</code>. You already get the button content right?</p> <p>So, the full code is:</p> <pre><code>import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.*; import java.awt.*; public class filecabinet extends JFrame implements ActionListener { private String folder = ""; // create buttons private JButton a = new JButton("A"); private JButton b = new JButton("B"); private JButton c = new JButton("C"); private JButton d = new JButton("D"); private JButton e = new JButton("E"); private JButton f = new JButton("F"); private JButton g = new JButton("G"); private JButton h = new JButton("H"); private JButton i = new JButton("I"); private JButton j = new JButton("J"); private JButton k = new JButton("K"); private JButton l = new JButton("L"); private JButton m = new JButton("M"); private JButton n = new JButton("N"); private JButton o = new JButton("O"); private JButton p = new JButton("P"); private JButton q = new JButton("Q"); private JButton r = new JButton("R"); private JButton s = new JButton("S"); private JButton t = new JButton("T"); private JButton u = new JButton("U"); private JButton v = new JButton("V"); private JButton w = new JButton("W"); private JButton x = new JButton("X"); private JButton y = new JButton("Y"); private JButton z = new JButton("Z"); // create panels private JPanel aF = new JPanel(); private JPanel gL = new JPanel(); private JPanel mR = new JPanel(); private JPanel sX = new JPanel(); private JPanel yZ = new JPanel(); private JPanel readout = new JPanel(); private JLabel notify = new JLabel("You have selected folder " + folder); public void ComposePane() { // set buttons to panels aF.add(a); aF.add(b); aF.add(c); aF.add(d); aF.add(e); aF.add(f); // set layout of panels aF.setLayout(new GridLayout(2, 3)); gL.add(g); gL.add(h); gL.add(i); gL.add(j); gL.add(k); gL.add(l); gL.setLayout(new GridLayout(2, 3)); mR.add(m); mR.add(n); mR.add(o); mR.add(p); mR.add(q); mR.add(r); mR.setLayout(new GridLayout(2, 3)); sX.add(s); sX.add(t); sX.add(u); sX.add(v); sX.add(w); sX.add(x); sX.setLayout(new GridLayout(2, 3)); yZ.add(y); yZ.add(z); yZ.add(readout); readout.add(notify); yZ.setLayout(new GridLayout(2, 3)); } public filecabinet() { setTitle("File Cabinet"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(new GridLayout(5, 1)); ComposePane(); add(aF); add(gL); add(mR); add(sX); add(yZ); addActionListener(aF); addActionListener(gL); addActionListener(mR); addActionListener(sX); addActionListener(yZ); } public void actionPerformed(ActionEvent e) { folder = ((JButton) e.getSource()).getText(); // set the label with folder value notify.setText("You have selected folder " + folder); } // Attach event handler to each JButton in JPanel public void addActionListener(JPanel panel) { Component[] components = panel.getComponents(); for (Component component : components) { if (component instanceof JButton) { ((JButton) component).addActionListener(this); } } } public static void main(String[] args) { filecabinet frame = new filecabinet(); final int WIDTH = 600; final int HEIGHT = 600; frame.setSize(WIDTH, HEIGHT); frame.setVisible(true); } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow do I get the JLabel to show which button has been selected
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USIswanto San
    1. USIswanto San
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWhy wouldn't you write a method that takes a letter and an ActionListener and returns a button that is associated with the action listener?
      singulars
      1. PO
      1. USditkin
    2. COThank you for your help. I am just learning. I apreciate your time.
      singulars
      1. PO
      1. USuser2217794
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload