1
我試圖垂直居中第一行JPanel
p1。其中的元素是JLabel
,JTextField
和另一個JPanel
與GridLayout
,當窗口拉伸的元素留在它的頂部,我能做些什麼來實現我想要的?Java:GridLayout垂直元素對齊
import javax.swing.*;
import java.awt.*;
public class grafica extends JFrame{
private JPanel p1,p2,p3;
private JButton aggiungi, affitta, reso, cerca, stampa;
private JTextArea a1;
private JTextField n1;
private JLabel l1;
public grafica(){
//creating panels
p1=new JPanel();
p2=new JPanel();
p3=new JPanel();
p1.setLayout(new GridLayout(2,1));
p3.setLayout(new GridLayout(5,1));
//creating elements
aggiungi=new JButton("Aggiungi");
affitta=new JButton("Affitta");
reso=new JButton("Reso");
cerca=new JButton("Cerca");
stampa=new JButton("Stampa");
n1=new JTextField(10);
l1=new JLabel("Taglia: ");
//adding elements
p2.add(l1);
p2.add(n1);
p3.add(aggiungi);
p3.add(affitta);
p3.add(reso);
p3.add(cerca);
p3.add(stampa);
p2.add(p3);
p1.add(p2);
a1=new JTextArea(20,20);
a1.setEditable(false);
p1.add(a1);
p1.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.red));
p2.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.blue));
p3.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.green));
this.setVisible(true);
this.getContentPane().add(p1);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
}
}
這是我想要的結果:
你能否包含你的元素分佈的圖像? JPanel p4也沒有在你的代碼中聲明。 – RubioRic
對不起,p4是我之前編寫的代碼的補充,我也添加了圖像。 – MGarlo