applet2.java

在JAVA的APPLE中直方图的如何处理.

package zhifang;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeSelectionModel;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
//Applet2
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
import java.awt.*;
//import java.awt.event.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.JTree;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import java.net.URL;
import javax.swing.tree.TreePath;

public class Applet2 extends Applet {
    boolean isStandalone = false;
    BorderLayout borderLayout1 = new BorderLayout();
    JTree jTree1 = new JTree();
    GridLayout gridLayout1 = new GridLayout();

    //Get a parameter value
    public String getParameter(String key, String def) {
        return isStandalone ? System.getProperty(key, def) :
                (getParameter(key) != null ? getParameter(key) : def);
    }

    //Construct the applet
    public Applet2() {
    }

    //Initialize the applet
    public void init() {
        try {
            jbInit();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //Component initialization
    private void jbInit() throws Exception {
        this.setLayout(gridLayout1);
        jTree1.addTreeSelectionListener(new
                                        tree_left_jTree1_treeSelectionAdapter(this));
        this.add(jTree1);
    }

    //Get Applet information
    public String getAppletInfo() {
        return "Applet Information";
    }

    //Get parameter info
    public String[][] getParameterInfo() {
        return null;
    }

    public void jTree1_valueChanged(TreeSelectionEvent e) {
        TreePath path = e.getNewLeadSelectionPath();
        try {
            URL url = new URL(this.getCodeBase(), "1.htm");//"tree_right.jsp?path="+path.toString());
            getAppletContext().showDocument(url, "_blank");//mainFrame是右窗口的名字

        } catch (Exception ex) {
            ex.printStackTrace();
        }

    }
}


class tree_left_jTree1_treeSelectionAdapter implements TreeSelectionListener {
    private Applet2 adaptee;
    tree_left_jTree1_treeSelectionAdapter(Applet2 adaptee) {
        this.adaptee = adaptee;
    }

    public void valueChanged(TreeSelectionEvent e) {
        adaptee.jTree1_valueChanged(e);
    }
}



/*
 public class
    extends JApplet {
  boolean isStandalone = false;
  JPanel jPanel1 = new JPanel();
  JSplitPane jSplitPane1 = new JSplitPane();
  JTree jTree1 = new JTree();
  DefaultMutableTreeNode root;
  DefaultMutableTreeNode temNode;
  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
        (getParameter(key) != null ? getParameter(key) : def);
  }

  //Construct the applet
  public Applet2() {
  }

  //Initialize the applet
  public void init() {
    try {
      jbInit();
 root = new DefaultMutableTreeNode("wangjydfkljfdljkdfjldfkldfjkljkldfjkldfjkl");
      temNode=new DefaultMutableTreeNode("wangjydfkljfdljkdfjldfkldfjkljkldfjkldfjkl is son");
      root.add(temNode);
      DefaultMutableTreeNode tem=new DefaultMutableTreeNode("sonson");
      for(int i=0;i<5;i++){
        temNode.add(tem);
      }

      jTree1 = new JTree(root);
      jTree1.getSelectionModel().setSelectionMode(TreeSelectionModel.
    SINGLE_TREE_SELECTION);

//为叶子增加图片
//this.SetLeafPicture();

    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    this.setSize(new Dimension(400, 300));
    this.getContentPane().setLayout(null);
    jPanel1.setBounds(new Rectangle(4, 0, 393, 297));
    jPanel1.setLayout(null);
    jSplitPane1.setOrientation(JSplitPane.VERTICAL_SPLIT);//垂直切份
    this.getContentPane().add(jPanel1);
    jPanel1.add(jSplitPane1);
    jSplitPane1.add(jTree1, JSplitPane.BOTTOM);
    jSplitPane1.setBounds(new Rectangle(21, 0, 384, 289));
    jSplitPane1.setDividerLocation(100);
    jTree1.setEnabled(true);
        jTree1.setAutoscrolls(true);
        jTree1.setBorder(BorderFactory.createLineBorder(Color.black));
        jTree1.setRequestFocusEnabled(true);
        jTree1.setCellEditor(null);
        jTree1.setEditable(false);
        jTree1.setExpandsSelectedPaths(true);
        jTree1.setRootVisible(true);
  }

  //Get Applet information
  public String getAppletInfo() {
    return "Applet Information";
  }

  //Get parameter info
  public String[][] getParameterInfo() {
    return null;
  }

  //static initializer for setting look & feel
  static {
    try {
      //UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
      //UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
    }
    catch (Exception e) {
    }
  }
 }
 class Branch
 {
  DefaultMutableTreeNode r; //树的数据结构中通用节点,节点可有多个子节点。
  public Branch(String[] data)
  {
   r = new DefaultMutableTreeNode(data[0]);
   for(int i=0;i<data.length;i++){
    //给节点r添多个子节点
    r.add(new DefaultMutableTreeNode(data[i]));
   }
  }
  public DefaultMutableTreeNode node()
  {
   return r; //返回节点
  }
 }*/