applet2.java~14~

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.tree.TreePath;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class Applet2 extends JApplet {
Hashtable ht = new Hashtable(), ht2 = new Hashtable();
Vector vector = new Vector();
Object[] objs = new Object[] {
"array item 1", "array item 2", "array item 3"
};
public void init() {
Container contentPane = getContentPane();

vector.addElement("vector element 1");
vector.addElement("vector element 2");
vector.addElement("vector element 3");
vector.addElement("vector element 4");
vector.addElement("vector element 5");

ht.put("another hashtable", ht2);
ht.put("vector", vector);
ht.put("Object[]", objs);

ht2.put("Object[]", objs);
ht2.put("vector", vector);
ht2.put("one", new Integer(1));
ht2.put("two", new Integer(2));
ht2.put("three", new Integer(3));

// trees must be created after data is populated

JTree hashTree = new JTree(ht);
JTree vectorTree = new JTree(vector);
JTree objectTree = new JTree(objs);

JScrollPane objPane = new JScrollPane(objectTree);
JScrollPane hashPane = new JScrollPane(hashTree);
JScrollPane vectorPane = new JScrollPane(vectorTree);

objPane.setPreferredSize(new Dimension(150,200));//w,h
hashPane.setPreferredSize(new Dimension(250,200));
vectorPane.setPreferredSize(new Dimension(150,200));

objPane.setBorder(
BorderFactory.createTitledBorder("Object[]"));

hashPane.setBorder(
BorderFactory.createTitledBorder("Hashtable"));

vectorPane.setBorder(
BorderFactory.createTitledBorder("Vector"));

hashTree.expandPath(new TreePath(
hashTree.getModel().getRoot()));

contentPane.setLayout(new FlowLayout());
contentPane.add(objPane);
contentPane.add(hashPane);
contentPane.add(vectorPane);
}
}

/*
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
  }
 }*/