如何设置JTextField的大小呢？

Question

最近用swing做了一个界面，说真的，swing的布局，外观太不好调了。
请问谁能告诉我如下将下面的textfild的大小调成跟光标那么高的高度吗？
[img]http://dl.iteye.com/upload/attachment/248398/8cfbd67e-8461-3563-bff1-87a91db92255.jpg[/img]

Answer 1

是性别单选按键组的问题，你性别单选按钮组是用的JPanel装的两个JRadioButton吧，把这个JPanel的Layout设为 new FlowLayout(FlowLayout.CENTER, 0, 0)就OK了，见下面代码：
[code="java"]
package org.zergle.test.swing;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.border.LineBorder;

public class ReaderAddIFrame extends JFrame {
private JLabel lblName = new JLabel("姓名");
private JTextField txtName = new JTextField();
private JLabel lblSex = new JLabel("性别");
private JRadioButton radMale = new JRadioButton("男");
private JRadioButton radFemale = new JRadioButton("女");
private JLabel lblAge = new JLabel("年齡");
private JTextField txtAge = new JTextField();
private JLabel lblCareer = new JLabel("职业");
private JTextField txtCareer = new JTextField();

private JPanel pnl1 = new JPanel();
private JPanel pnl1_1 = new JPanel(new GridLayout(2, 4));
private JPanel pnlSexGroup = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 0));

public ReaderAddIFrame() {
    this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
    this.pnlSexGroup.add(this.radMale);
    this.pnlSexGroup.add(this.radFemale);
    this.pnl1_1.add(this.lblName);
    this.pnl1_1.add(this.txtName);
    this.pnl1_1.add(this.lblSex);
    this.pnl1_1.add(this.pnlSexGroup);
    this.pnl1_1.add(this.lblAge);
    this.pnl1_1.add(this.txtAge);
    this.pnl1_1.add(this.lblCareer);
    this.pnl1_1.add(this.txtCareer);
    this.pnl1.add(this.pnl1_1);
    this.add(this.pnl1, BorderLayout.CENTER);
    this.setSize(600, 400);
    this.setVisible(true);
}

public static void main(String[] args) {
    new ReaderAddIFrame();
}

}
[/code]