m試圖添加一個Jslider和一個Jlabel到PAGE_END旁邊,我可以在它們的每個上添加它們,但添加.add(「組件名稱」.PAGE_END)爲了讓它在那裏存在?java Jpanel和邊框佈局,將2個組件添加到PAGE_END
所以基本上我想創建我的滑塊和它旁邊的一個jlabel在右邊,有人可以請幫忙,謝謝。
包分配;
//import java.awt.FlowLayout;
import java.awt.BorderLayout;
import javax.swing.JLabel;
import javax.swing.JSlider;
import javax.swing.JTextField;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MyControlPanel extends javax.swing.JPanel {
JSlider slider;
JLabel sliderLabel;
JLabel blank;
public MyControlPanel() {
slider = new JSlider();
slider.setValue(50);
slider.addChangeListener(new MyChangeAction());
slider.setMajorTickSpacing(10);
slider.setPaintLabels(true);
slider.setPaintTicks(true);
slider.setBounds(300, 50, 100, 50);
sliderLabel = new JLabel("50");
blank = new JLabel(" ");
JTextField boundary_length = new JTextField("Boundary Length");
JTextField area = new JTextField("Area");
setLayout(new BorderLayout());
this.add(slider, BorderLayout.PAGE_END);
this.add(sliderLabel, BorderLayout.LINE_END);
this.add(area);
this.add(boundary_length);
this.add(blank, BorderLayout.LINE_START);
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 400, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 300, Short.MAX_VALUE)
);
}// </editor-fold>
// Variables declaration - do not modify
// End of variables declaration
public class MyChangeAction implements ChangeListener{
//complete code here
public void stateChanged(ChangeEvent ce)
{
int value = slider.getValue();
String str = Integer.toString(value);
sliderLabel.setText(str);
}
} // end class
http://stackoverflow.com/q/12993221/741249的副本。請不要多次發佈相同的問題! – THelper