请教各位高手，我如何将各种字体的名称加入JComboBox组件中

Question

   我想实现一个类似于Wordz中的字体选择下拉框，我觉得应该把每个字体的名称加入到一个一维数组对象中，然后再放入JComboBox组件中，代码如下：
import java.awt.*;
import java.awt.Font;
import java.awt.event.*;
import javax.swing.*;
public class FontDemo extends JFrame {
        
     JComboBox fontComboBox=new JComboBox();
     JLabel fontLabel=new JLabel();
    public FontDemo(){
     Object[] obj={ };
     for(int j=0;j<obj.length;j++)
     obj[j]=(Object)new Font().getName();
     fontComboBox.setMaximumRowCount(4);
     fontComboBox.setRenderer(new FontCellRenderer());
     for(int i=0;i<obj.length;i++)
        fontComboBox.addItem(obj[i]); 
        fontComboBox.addActionListener(new ActionListener(){
       public void actionPerformed(ActionEvent evt){  //处理事件
         Object value = (Object)fontComboBox.getSelectedItem();  //得到选择的内容,此处为一维数组
         fontLabel.setText(value.toString());  //设置iconLabel的文本
       }
      });
      
      this.getContentPane().setLayout(new BorderLayout());  //设置布局管理器
      this.getContentPane().add(fontComboBox,BorderLayout.NORTH); //在上方增加下拉框
      this.getContentPane().add(fontLabel,BorderLayout.CENTER);  //在中间增加iconLabel,用于响应选择的变化
      this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  //关闭窗口时退出程序
      this.setSize(350,260);  //设置窗口尺寸
      this.setVisible(true);  //显示窗口
    }
    
    public static void main(String[] args) {
              new FontDemo();
    }
}import javax.swing.*;
import javax.swing.border.LineBorder;
public class FontCellRenderer extends JLabel implements ListCellRenderer{
 public Component getListCellRendererComponent(JList list, Object value, int index, boolean isselected, boolean cellHasFocus){
  JLabel label=new JLabel();
  Font font=(Font)value;
  label.setText(font.getFamily());
  label.setFont(font);
  return label;
 }
}但为什么程序总出现如下问题：
cannot resolve symbol
symbol  : constructor Font ()
location: class java.awt.Font
            obj[j]=(Object)new Font().getName();
                               ^

Answer 1

给你个程序参考下．import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;class TxtFont extends JFrame implements ListSelectionListener{
JLabel l=new JLabel("示例文本 Simple Text");
JList j1=new JList();
JList j2=new JList();

JScrollPane jScrollPane1=new JScrollPane();
JScrollPane jScrollPane2=new JScrollPane();

JPanel p1=new JPanel();
JPanel p2=new JPanel();

TxtFont(){
this.setLayout(new BorderLayout());
this.add(p1,BorderLayout.NORTH);
this.add(p2,BorderLayout.SOUTH);
p1.add(l);

jScrollPane1.getViewport().add(j1);
p2.add(jScrollPane1);
jScrollPane2.getViewport().add(j2);
p2.add(jScrollPane2);

GraphicsEnvironment env=GraphicsEnvironment.getLocalGraphicsEnvironment();
String fontNames[]=env.getAvailableFontFamilyNames();
j1.setListData(fontNames);

String fontSizes[]={"9","10","11","12","14","16","18","20","24","26","28","30","32"};
j2.setListData(fontSizes);

this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setTitle("设置文本字体");
this.setSize(350,300);
this.setVisible(true);
j1.addListSelectionListener(this);
j2.addListSelectionListener(this);
}

public void valueChanged(ListSelectionEvent e){
if(e.getSource().equals(j2))
{
int newFontSize=Integer.parseInt((String)j2.getSelectedValue());
Font f=l.getFont();
Font newFont=new Font(f.getName(),f.getStyle(),newFontSize);
l.setFont(newFont);
}
else
{
String newFontName=(String)j1.getSelectedValue();
Font f=l.getFont();
Font newFont=new Font(newFontName,f.getStyle(),f.getSize());
l.setFont(newFont);
}
}

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

Answer 2

  哥们 也许我这个回帖晚了些......
  字体的名称加入到一个一维数组对象中,方法如下：Font[] fonts={
                       new Font("Serif",Font.BOLD,20),
                       new Font("Monospaced",Font.ITALIC,20),
                       new Font("宋体",Font.PLAIN,20),
                       new Font("黑体",Font.CENTER_BASELINE,20),
                       new Font("隶书",Font.HANGING_BASELINE,20),
                       new Font("华文楷体",Font.LAYOUT_LEFT_TO_RIGHT,20),}；   
  实现一个类似于Word中的字体选择下拉框  java程序如下：import java.awt.*;
import java.awt.event.*;
import javax.swing.*;public class fontRenderer extends JFrame{
     JComboBox comboBox;
     JTextArea area;
     fontRenderer(){
        super("字体选择下拉框");
        init();
        setSize(300,170);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     }
    private void init() {         Font[] fonts={new Font("Serif",Font.BOLD,20),
                       new Font("Monospaced",Font.ITALIC,20),
                       new Font("宋体",Font.PLAIN,20),
                       new Font("黑体",Font.CENTER_BASELINE,20),
                       new Font("隶书",Font.HANGING_BASELINE,20),
                       new Font("华文楷体",Font.LAYOUT_LEFT_TO_RIGHT,20),
                       new Font("华文仿宋",Font.LAYOUT_LEFT_TO_RIGHT,20),
                       new Font("华文新魏",Font.LAYOUT_LEFT_TO_RIGHT,20),
                       new Font("方正舒体",Font.LAYOUT_LEFT_TO_RIGHT,20),
                       new Font("华文彩云",Font.LAYOUT_LEFT_TO_RIGHT,20),
                       new Font("华文行楷",Font.LAYOUT_LEFT_TO_RIGHT,20),
                       new Font("华文中宋",Font.LAYOUT_LEFT_TO_RIGHT,20),
      };
     
       comboBox=new JComboBox(fonts);
       comboBox.setMaximumRowCount(4);
       comboBox.setEditable(false);
       comboBox.setRenderer(new fontCellRenderer());
       add(comboBox,BorderLayout.NORTH);       area=new JTextArea();
       area.setBackground(Color.lightGray);
       area.setForeground(Color.red);
       add(new JScrollPane(area),BorderLayout.CENTER);       ActionListener actionListener=new ActionListener(){
            public void actionPerformed(ActionEvent e) {
             
             Font selectedFont=(Font)comboBox.getSelectedItem();
             String name=selectedFont.getName();
             area.setFont(selectedFont);
             area.setText("字体设置为："+name+"\n");
            }
          };
       comboBox.addActionListener(actionListener);    }
    class fontCellRenderer implements ListCellRenderer{
        public Component getListCellRendererComponent(JList list, Object value,
                      int index, boolean isSelected, boolean cellHasFocus) {
            JLabel label=new JLabel();
            Font font=(Font)value;
            label.setText(font.getFamily());
            label.setFont(font);            return label;
        }
      }
     public static void main(String args[]){
        fontRenderer win=new fontRenderer();
      }
}