How To Change JLabel Font Size Using JSlider In Java NetBeans
In this Java Tutorial we will see How To Change A JLabel Text Font Size Using A JSlider So The Image Size Will Depend On The JSider Value using Java NetBeans .
Project Source Code:
import java.awt.BorderLayout;
import java.awt.Font;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
/**
*
* @author 1BestCsharp
*/
public class Java_JSider_Resize_Text extends javax.swing.JFrame {
/**
* Creates new form Java_JSider_Resize_Text
*/
public Java_JSider_Resize_Text() {
initComponents();
jPanel1.setLayout(new BorderLayout());
lbl.setHorizontalAlignment(SwingUtilities.CENTER);
lbl.setVerticalAlignment(SwingUtilities.CENTER);
jPanel1.add(lbl, BorderLayout.CENTER);
jSlider_FontSize.setValue(lbl.getFont().getSize());
}
JLabel lbl = new JLabel("Message");
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jSlider_FontSize = new javax.swing.JSlider();
jPanel1 = new javax.swing.JPanel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jSlider_FontSize.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
jSlider_FontSize.setForeground(new java.awt.Color(51, 51, 255));
jSlider_FontSize.setMajorTickSpacing(10);
jSlider_FontSize.setMaximum(150);
jSlider_FontSize.setPaintLabels(true);
jSlider_FontSize.setPaintTicks(true);
jSlider_FontSize.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
jSlider_FontSizeStateChanged(evt);
}
});
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 352, Short.MAX_VALUE)
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jSlider_FontSize, javax.swing.GroupLayout.DEFAULT_SIZE, 645, Short.MAX_VALUE)
.addContainerGap())
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGap(18, 18, 18)
.addComponent(jSlider_FontSize, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
pack();
}// </editor-fold>
private void jSlider_FontSizeStateChanged(javax.swing.event.ChangeEvent evt) {
lbl.setFont(new Font(lbl.getFont().getName(), lbl.getFont().getStyle(), jSlider_FontSize.getValue()));
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Java_JSider_Resize_Text().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JPanel jPanel1;
private javax.swing.JSlider jSlider_FontSize;
// End of variables declaration
}
///////////////OUTPUT:
