視圖里面改一下就好了,反正就那么幾個選項
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你都點一遍順便還可以熟悉一下其他的功能,點了看看效果,不要怕麻煩,初學(xué)習(xí)階段最好都嘗試一遍,這樣以后遇到問題的時候就能快速解決,特別是工作當(dāng)中,裨益頗大
灰色預(yù)測模型為GM(1,1)
灰參數(shù)a和u的值:
a=-0.0323252892223847 u=14042.3315313962
原始序列預(yù)測值:
13205 14705 15188 15687 16203 16735 17285 17853 18439 19045
累加序列預(yù)測值:
14705 15188 15687 16203 16735 17285 17853 18439 19045 19671
級比值:
0.933017734755882 0.991731483427931 0.906095238095238 0.951546640889319 0.951264367816092 0.952798160113898 0.980668027064762 0.994977559307544 1.07637451115712
相對誤差值:
0 3.90438540431923 6.43063985387993 0.395441255218115 2.10782203579584 3.81930406598348 5.34849588953024 4.12878515843797 1.47641388551927 0.5323261370569
2013-2017年的預(yù)測值
2013 20317.4561851648
2014 20984.954243779
2015 21674.381900971
2016 22386.4596192006
2017 23121.9315305897
package hao;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.io.File;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
public class ChatPanel extends JPanel {
private static final long serialVersionUID = 1L;
JButton send,record,saveRecord,image;
JTextArea inputArea;
JTextPane text;//注意用法****************************************************************************
JComboBox fontName = null, fontSize = null, fontStyle = null, fontColor = null,fontBackColor = null;
public StyledDocument doc = null; JScrollPane scrollPane;JPanel textChat;
JButton music;
public ChatPanel() {
setLayout(new BorderLayout());
text = new JTextPane();
text.setEditable(false);
doc = text.getStyledDocument();//跟蹤文本和圖片寫到該區(qū)域的位置*************************************
scrollPane = new JScrollPane(text);
//注意下面對JComboBox的巧用***********************************************************************
String[] str_name = { "宋體", "黑體", "Dialog", "Gulim" };
String[] str_Size = { "12", "14", "18", "22", "30", "40" };
String[] str_Style = { "常規(guī)", "斜體", "粗體", "粗斜體" };
String[] str_Color = { "黑色", "紅色", "藍(lán)色", "黃色", "綠色" };
String[] str_BackColor = { "無色", "灰色", "淡紅", "淡藍(lán)", "淡黃", "淡綠" };
fontName = new JComboBox(str_name);
fontSize = new JComboBox(str_Size);
fontStyle = new JComboBox(str_Style);
fontColor = new JComboBox(str_Color);
fontBackColor = new JComboBox(str_BackColor);
fontName.setBackground(new Color(255,153,255));
fontSize.setBackground(new Color(255,153,255));
fontStyle.setBackground(new Color(255,153,255));
fontColor.setBackground(new Color(255,153,255));
fontBackColor.setBackground(new Color(255,153,255));
Box box = Box.createVerticalBox();//創(chuàng)建一個可以容納多個Box組件的Box*******************************
Box box_1 = Box.createHorizontalBox();
Box box_2 = Box.createHorizontalBox();
Box box_4 = Box.createHorizontalBox();
box.add(box_1);
box.add(box_2);
box.add(box_4);
JLabel b1= new JLabel("字體~~"), b2 = new JLabel("樣式~~"),b3 = new JLabel("字號~~"),b4 = new JLabel("顏色~~"),b5 = new JLabel("背景~~");
b1.setBackground(new Color(255,153,255));
b2.setBackground(new Color(255,153,255));
b3.setBackground(new Color(255,153,255));
b4.setBackground(new Color(255,153,255));
b5.setBackground(new Color(255,153,255));
box_1.add(b1);
box_1.add(fontName);
box_1.add(Box.createHorizontalStrut(8));
box_1.add(b2);
box_1.add(fontStyle);
box_1.add(Box.createHorizontalStrut(8));
box_1.add(b3);
box_1.add(fontSize);
box_2.add(Box.createHorizontalStrut(8));
box_2.add(b4);
box_2.add(fontColor);
box_2.add(Box.createHorizontalStrut(8));
box_4.add(b5);
box_4.add(fontBackColor);
textChat = new JPanel();
textChat.setLayout(new BorderLayout());
textChat.setBackground(new Color(255,153,255));
inputArea = new JTextArea(3, 20);
inputArea.setLineWrap(true); //設(shè)置文本區(qū)的換行策略。88888*********************************
send = new JButton("發(fā)送");
record=new JButton("顯示記錄");
saveRecord=new JButton("儲存記錄");
image=new JButton("表情");
send.setBackground(new Color(255,153,255));
record.setBackground(new Color(255,153,255));
saveRecord.setBackground(new Color(255,153,255));
image.setBackground(new Color(255,153,255));
Box box_3 = Box.createHorizontalBox();
box_3.add(send); box_3.add(Box.createHorizontalStrut(8));//設(shè)置按鈕間距*************************888
box_3.add(record); box_3.add(Box.createHorizontalStrut(8)); //設(shè)置按鈕間距*************************888
box_3.add(saveRecord); box_3.add(Box.createHorizontalStrut(8));//設(shè)置按鈕間距*************************888
box_3.add(image);
box.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),5));//設(shè)置Box的邊框線********************
box_3.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),5));
textChat.add(box,BorderLayout.NORTH);
textChat.add(inputArea,BorderLayout.CENTER);
textChat.add(box_3, BorderLayout.SOUTH);
inputArea.requestFocus(true);
inputArea.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),5));//設(shè)置輸入窗口邊框線*******************
text.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),8));//設(shè)置輸入窗口邊框線*******************
JPanel audioPanel = new JPanel();//最上面的邊框************************************************************************
audioPanel.setBackground(new Color(255,153,255));
audioPanel.setLayout(new GridLayout(1,1));
music = new JButton("想聽就聽");
music.setPreferredSize(new Dimension(320,50));
music.setBorder(BorderFactory.createLineBorder(Color.BLACK,10));//設(shè)置輸入窗口邊框線*******************
audioPanel.add(music);
add(audioPanel, BorderLayout.NORTH);
add(scrollPane,BorderLayout.CENTER);
add(textChat, BorderLayout.SOUTH);
}
void insertIcon(ImageIcon image) {
text.setCaretPosition(doc.getLength());
text.insertIcon(image);
insert(new MessageStyle());//?????????????????????????????????????????????????????????????????????????????/
}
public void insert(MessageStyle attrib) {
try {
doc.insertString(doc.getLength(), attrib.getText() + "\n", attrib.getAttrSet());//寫完后接著換行************
} catch (BadLocationException e) {
e.printStackTrace();
}
}
public MessageStyle getMessageStyle(String line) {
MessageStyle att = new MessageStyle();
att.setText(line);
att.setName((String) fontName.getSelectedItem());
att.setSize(Integer.parseInt((String) fontSize.getSelectedItem()));
String temp_style = (String) fontStyle.getSelectedItem();
if (temp_style.equals("常規(guī)")) {
att.setStyle(MessageStyle.GENERAL);
}
else if (temp_style.equals("粗體")) {
att.setStyle(MessageStyle.BOLD);
}
else if (temp_style.equals("斜體")) {
att.setStyle(MessageStyle.ITALIC);
}
else if (temp_style.equals("粗斜體")) {
att.setStyle(MessageStyle.BOLD_ITALIC);
}
String temp_color = (String) fontColor.getSelectedItem();
if (temp_color.equals("黑色")) {
att.setColor(new Color(0, 0, 0));
}
else if (temp_color.equals("紅色")) {
att.setColor(new Color(255, 0, 0));
}
else if (temp_color.equals("藍(lán)色")) {
att.setColor(new Color(0, 0, 255));
}
else if (temp_color.equals("黃色")) {
att.setColor(new Color(255, 255, 0));
}
else if (temp_color.equals("綠色")) {
att.setColor(new Color(0, 255, 0));
}
String temp_backColor = (String) fontBackColor.getSelectedItem();
if (!temp_backColor.equals("無色")) {
if (temp_backColor.equals("灰色")) {
att.setBackColor(new Color(200, 200, 200));
}
else if (temp_backColor.equals("淡紅")) {
att.setBackColor(new Color(255, 200, 200));
}
else if (temp_backColor.equals("淡藍(lán)")) {
att.setBackColor(new Color(200, 200, 255));
}
else if (temp_backColor.equals("淡黃")) {
att.setBackColor(new Color(255, 255, 200));
}
else if (temp_backColor.equals("淡綠")) {
att.setBackColor(new Color(200, 255, 200));
}
}
return att;
}
}
java課程設(shè)計題目及代碼分別是:
1、題目:計算器。設(shè)計內(nèi)容是設(shè)計一個圖形界面(GUI)的計算器應(yīng)用程序,完成簡單的算術(shù)運算。
設(shè)計要求是設(shè)計的計算器應(yīng)用程序可以完成家法、減法、乘法、除法和取余運算。且有小數(shù)點、正負(fù)號、求倒數(shù)、退格和清零功能。
2、代碼:
數(shù)字按鈕NumberButton類如下:
import java.awt.
import java.awt.event.
import javax.swing.
public class NumberButton extends Button.
{
int number.
public NumberButton(int number).
{
super(""+number).
this.number=number.
setForeground(Color.blue).
}
public int getNumber().
{
return number;
}
}
其它java課程設(shè)計題目及代碼是:
題目:華容道。編寫一個按鈕的子類,使用該子類創(chuàng)建的對象代表華容道中的人物。通過焦點事件控制人物顏色,當(dāng)人物獲得焦點時顏色為藍(lán)色,當(dāng)失去焦點時顏色為灰色。
通過鍵盤事件和鼠標(biāo)事件來實現(xiàn)曹操、關(guān)羽等人物的移動。當(dāng)人物上發(fā)生鼠標(biāo)事件或鍵盤事件時,如果鼠標(biāo)指針的位置是在人物的下方(也就是組件的下半部分)或按下鍵盤的“↓“鍵,該人物向下移動。向左、向右和向上的移動原理類似。
代碼是:
String name[]={"曹操","關(guān)羽","張","劉","馬","許","兵","兵","兵","兵"}.
for(int i=0;iname.length;i++).
{
person[i]=new Person(i,name[i]).
person[i].addKeyListener(this).
person[i].addMouseListener(this).
//? ? ?person[i].addFocusListener(new Person).
add(person[i]).
}
person[0].setBounds(104,54,100,100).
person[1].setBounds(104,154,100,50).
person[2].setBounds(54,154,50,100).
person[3].setBounds(204,154,50,100).
person[4].setBounds(54,54,50,100).
person[5].setBounds(204,54,50,100);
person[6].setBounds(54,254,50,50);
person[7].setBounds(204,254,50,50);
person[8].setBounds(104,204,50,50);
person[9].setBounds(154,204,50,50);
黃色高亮的是系統(tǒng)中的關(guān)鍵字,白色是類名,灰色是普通變量。
網(wǎng)站題目:灰色預(yù)測java代碼 灰色預(yù)測代碼Python
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