In this AWT tutorial, we will create dialog to collect address information. Then we will launch this AWT dialog from an AWT Frame Window as a Modal dialog. When user closes the dialog by pressing OK button, AWT frame window shows the Formatted address in a TextArea component.
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import java.awt.Button; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.Label; import java.awt.TextArea; import java.awt.TextField; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; //Sample 04: Add Action Listener public class FrameWin extends Frame implements WindowListener, ActionListener { //sample 01: Declaration TextArea taAddress; public FrameWin(String FrameTitle) { //Display the Frame Window super(FrameTitle); setSize(420, 160); setLocation(100,100); addWindowListener(this); //Sample 02: Add a Button, Label and Text Area Label lblAddress = new Label("Address"); Label lblName = new Label("Name"); Label lblAge = new Label("Age"); TextField txtName = new TextField(30); TextField txtAge = new TextField(3); Button btnAddress = new Button("..."); taAddress = new TextArea(3,40); taAddress.setEnabled(false); //Sample 03: Add Controls to Frame Window setLayout(new FlowLayout()); add(lblName); add(txtName); add(lblAge); add(txtAge); add(lblAddress); add(taAddress); add(btnAddress); //Sample 05: Register the Button with Listener btnAddress.addActionListener(this); } public void windowOpened(WindowEvent e) {} public void windowClosed(WindowEvent e) {} public void windowIconified(WindowEvent e) {} public void windowDeiconified(WindowEvent e) {} public void windowActivated(WindowEvent e) {} public void windowDeactivated(WindowEvent e) {} public void windowClosing(WindowEvent e) { this.dispose(); } public void actionPerformed(ActionEvent e) { //Sample 13: Launch the Dialog ||=> Run 2 AddressDlg addrDlg = new AddressDlg(this, "Address Form", true); addrDlg.setVisible(true); //Sample 15: Set the Formatted Text taAddress.setText(addrDlg.getAddrOut()); } } ================================================================ import java.awt.Button; import java.awt.Dialog; import java.awt.FlowLayout; import java.awt.Frame; import java.awt.Label; import java.awt.TextField; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; //Sample 09: Implement Window Listener //Sample 14: Implement Action Listener public class AddressDlg extends Dialog implements ActionListener, WindowListener { //Sample 06: Class Members TextField txtFlat; TextField txtStreet; TextField txtCity; TextField txtState; TextField txtPin; private String AddrOut; //Sample 07: Constructor public AddressDlg(Frame parent, String title, boolean isModal) { super(parent, title, isModal); //Sample 12: Initialize the Dialog InitDialog(); } //Sample 08: Arrange the Control private void InitDialog() { //Sample 8.1 Set Size and Location setSize(380, 200); setLocation(300,200); setLayout(new FlowLayout()); //Sample 8.2: Create Labels Label lblFlatNo = new Label("House/Flat :"); Label lblStreet = new Label("Street :"); Label lblCity = new Label("City :"); Label lblState = new Label("State :"); Label lblZip = new Label("Zip :"); //Sample 8.3: Create Text Boxes txtFlat = new TextField(30); txtStreet = new TextField(30); txtCity = new TextField(30); txtState = new TextField(30); txtPin = new TextField(10); //Sample 8.4: Create Buttons Button BtnOK = new Button("OK"); Button BtnCancel = new Button("Cancel"); BtnOK.setActionCommand("OK"); BtnCancel.setActionCommand("Cancel"); //sample 8.5: Add the Controls add(lblFlatNo); add(txtFlat); add(lblStreet); add(txtStreet); add(lblCity); add(txtCity); add(lblState); add(txtState); add(lblZip); add(txtPin); add(BtnOK); add(BtnCancel); //Sample 10: Register with Window Listener addWindowListener(this); //Sample 14.1: Register Action Listener BtnOK.addActionListener(this); BtnCancel.addActionListener(this); } public void windowOpened(WindowEvent e) {} public void windowClosed(WindowEvent e) {} public void windowIconified(WindowEvent e) {} public void windowDeiconified(WindowEvent e) {} public void windowActivated(WindowEvent e) {} public void windowDeactivated(WindowEvent e) {} public void windowClosing(WindowEvent e) { //Sample 11: Hide the Dialog this.setVisible(false); } @Override public void actionPerformed(ActionEvent e) { //Sample 14.2 Fill the AddrOut Private Member String action = e.getActionCommand(); if (action.compareTo("OK") == 0) { AddrOut = txtFlat.getText() + "\r\n" + txtStreet.getText() + "\r\n" + txtCity.getText() + " - " + txtState.getText() + "\r\n" + txtPin.getText(); } else { AddrOut = "None"; } setVisible(false); } //Sample 14.3 Fill the AddrOut Private Member public String getAddrOut() { return AddrOut; } } ================================================================ |
Categories: AWT-Tube
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