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我启动了一个小应用程序来显示我的输入值的图表。为此,我使用了 Swing
框架和面板。我想要的输出是从用户那里获取更多的输入并计算每组值的平均值并在单击按钮后将它们显示在窗口中。为此,我拍摄了一个框架和两个面板。现在问题是,当我向我的面板添加越来越多的组件时,它不允许扩展面板的大小。它仅扩展到大约 1366*768
大小。但我有很多组件要添加到它。我测试了几乎所有的布局管理器,最后现在使用组布局。 而且我无法在单击此处输入代码中的按钮后添加带有图表的面板`是组布局。我使用了按钮点击事件。 请建议说什么。我的代码如下
//class main 开始框架
public class Main {
public static void main(String args[])
{
Application app=new Application();
}
}
//类应用
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JLabel;
public class Application extends JFrame {
private MainPanel currentpanel;
public Application()
{
currentpanel = new MainPanel();
setupFrame();
}
private void setupFrame()
{
JScrollPane scrollPane = new JScrollPane(currentpanel);
//getContentPane().
getContentPane().add(scrollPane);
//JScrollPane scrollPane = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
//scrollPane.add(currentpanel);
//this.setContentPane(scrollPane);
this.setVisible(true);
this.setSize(1070,831);
}
}
class Pan extends JPanel
{
public Pan()
{
JPanel m= new MainPanel();
this.add(m);
}
}
//类主面板
import javax.swing.JPanel;
import javax.swing.SpringLayout;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JLabel;
import java.awt.Font;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.JButton;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.LayoutStyle.ComponentPlacement;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class MainPanel extends JPanel {
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTextField textField_4;
private JTextField textField_5;
private JTextField textField_6;
private JTextField textField_7;
private JTextField textField_8;
private JTextField textField_9;
private JTextField textField_10;
private JTextField textField_11;
private JTextField textField_12;
private JTextField textField_13;
private JTextField textField_14;
private JTextField textField_15;
private JTextField textField_16;
private JTextField textField_17;
private JTextField textField_18;
private JTextField textField_19;
private JScrollPane scrollPane_1;
private int a;
private boolean f;
public MainPanel()
{
setupPanel();
}
private void setupPanel()
{
setBackground(new Color(138, 43, 226));
JLabel lblNewLabel = new JLabel("statement 1");
lblNewLabel.setFont(new Font("Vani", Font.PLAIN, 16));
JLabel lblNewLabel_2 = new JLabel("statement 2");
lblNewLabel_2.setFont(new Font("Vani", Font.PLAIN, 16));
JLabel lblNewLabel_3 = new JLabel("statement 3");
lblNewLabel_3.setFont(new Font("Vani", Font.PLAIN, 16));
JLabel lblNewLabel_4 = new JLabel("statement 4");
lblNewLabel_4.setFont(new Font("Vani", Font.PLAIN, 16));
JLabel lblNewLabel_1 = new JLabel("statement 5");
lblNewLabel_1.setFont(new Font("Vani", Font.PLAIN, 16));
textField = new JTextField();
textField.setColumns(10);
textField_1 = new JTextField();
textField_1.setColumns(10);
textField_2 = new JTextField();
textField_2.setColumns(10);
textField_3 = new JTextField();
textField_3.setColumns(10);
textField_4 = new JTextField();
textField_4.setColumns(10);
textField_5 = new JTextField();
textField_5.setColumns(10);
textField_6 = new JTextField();
textField_6.setColumns(10);
textField_7 = new JTextField();
textField_7.setColumns(10);
textField_8 = new JTextField();
textField_8.setColumns(10);
textField_9 = new JTextField();
textField_9.setColumns(10);
textField_10 = new JTextField();
textField_10.setColumns(10);
textField_11 = new JTextField();
textField_11.setColumns(10);
textField_12 = new JTextField();
textField_12.setColumns(10);
textField_13 = new JTextField();
textField_13.setColumns(10);
textField_14 = new JTextField();
textField_14.setColumns(10);
textField_15 = new JTextField();
textField_15.setColumns(10);
textField_16 = new JTextField();
textField_16.setColumns(10);
textField_17 = new JTextField();
textField_17.setColumns(10);
textField_18 = new JTextField();
textField_18.setColumns(10);
textField_19 = new JTextField();
textField_19.setColumns(10);
scrollPane_1 = new JScrollPane();
JPanel panel = new GraphPanel();
final MyChart bar=new MyChart();
JButton btnCheckTheStatus = new JButton("Check the Status");
btnCheckTheStatus.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
if(textField.getText()!=null)
a=Integer.parseInt(textField.getText());
if(a!=0)
{
bar.prepareChart(a);
}
f=true;
}
});
btnCheckTheStatus.setBackground(Color.GRAY);
GroupLayout groupLayout = new GroupLayout(this);
groupLayout.setHorizontalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(218)
.addComponent(scrollPane_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addGroup(groupLayout.createParallelGroup(Alignment.TRAILING)
.addGroup(groupLayout.createSequentialGroup()
.addContainerGap()
.addComponent(panel, GroupLayout.PREFERRED_SIZE, 843, GroupLayout.PREFERRED_SIZE))
.addGroup(Alignment.LEADING, groupLayout.createSequentialGroup()
.addGap(60)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addComponent(lblNewLabel, GroupLayout.PREFERRED_SIZE, 400, GroupLayout.PREFERRED_SIZE)
.addGap(48)
.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(68)
.addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(66)
.addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(61)
.addComponent(textField_3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(lblNewLabel_2, GroupLayout.PREFERRED_SIZE, 400, GroupLayout.PREFERRED_SIZE)
.addGap(48)
.addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(68)
.addComponent(textField_5, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(66)
.addComponent(textField_6, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(61)
.addComponent(textField_7, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(lblNewLabel_3, GroupLayout.PREFERRED_SIZE, 400, GroupLayout.PREFERRED_SIZE)
.addGap(48)
.addComponent(textField_8, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(68)
.addComponent(textField_9, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(66)
.addComponent(textField_10, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(61)
.addComponent(textField_11, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(lblNewLabel_4, GroupLayout.PREFERRED_SIZE, 400, GroupLayout.PREFERRED_SIZE)
.addGap(48)
.addComponent(textField_12, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(68)
.addComponent(textField_13, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(66)
.addComponent(textField_14, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(61)
.addComponent(textField_15, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGroup(groupLayout.createSequentialGroup()
.addComponent(lblNewLabel_1, GroupLayout.PREFERRED_SIZE, 400, GroupLayout.PREFERRED_SIZE)
.addGap(48)
.addComponent(textField_16, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(68)
.addComponent(textField_17, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(66)
.addComponent(textField_18, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(61)
.addComponent(textField_19, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)))))
.addGap(56)
.addComponent(btnCheckTheStatus)))
.addContainerGap(152, Short.MAX_VALUE))
);
groupLayout.setVerticalGroup(
groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(47)
.addComponent(scrollPane_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGap(36)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addGroup(groupLayout.createSequentialGroup()
.addGap(2)
.addComponent(lblNewLabel, GroupLayout.PREFERRED_SIZE, 20, GroupLayout.PREFERRED_SIZE))
.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_2, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_3, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(49)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addComponent(lblNewLabel_2, GroupLayout.PREFERRED_SIZE, 20, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_4, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_5, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_6, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_7, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(43)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addComponent(lblNewLabel_3, GroupLayout.PREFERRED_SIZE, 20, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_8, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_9, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_10, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_11, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(44)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addComponent(lblNewLabel_4, GroupLayout.PREFERRED_SIZE, 20, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_12, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_13, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_14, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_15, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
.addGap(55)
.addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
.addComponent(lblNewLabel_1, GroupLayout.PREFERRED_SIZE, 20, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_16, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_17, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(textField_18, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
.addComponent(textField_19, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addComponent(btnCheckTheStatus)))
.addGap(31)
.addComponent(panel, GroupLayout.PREFERRED_SIZE, 316, GroupLayout.PREFERRED_SIZE)
.addContainerGap(22, Short.MAX_VALUE))
);
setLayout(groupLayout);
}
}
class GraphPanel extends JPanel{
JScrollPane scrollPane;
ImageIcon icon= new ImageIcon("BarChart.png");
ImageIcon icon1= new ImageIcon("BarChart.png");
public void paintComponent(Graphics g)
{
g.drawImage(icon.getImage(),10, 10, 300, 200, null);
g.drawImage(icon1.getImage(),320, 10, 300, 200, null);
}
}
class MyChart
{
private int a;
private int b;
private int c;
private int d;
private int e;
public void prepareChart(int a){
this.a=a;
b=a+a;
c=a;
d=b;
e=a+b;
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(a, "Marks", "1");
dataset.setValue(b, "Marks", "2");
dataset.setValue(c, "Marks", "3");
dataset.setValue(d, "Marks", "4");
dataset.setValue(e, "Marks", "5");
JFreeChart chart = ChartFactory.createBarChart
("Status of your thoughts","Feild", "Status", dataset,
PlotOrientation.VERTICAL, false,true, false);
chart.setBackgroundPaint(Color.white);
chart.getTitle().setPaint(Color.blue);
CategoryPlot p = chart.getCategoryPlot();
p.setRangeGridlinePaint(Color.pink);
ChartFrame frame1=new ChartFrame("Bar Chart",chart);
frame1.setVisible(true);
frame1.setSize(400,350);
try{
final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
final File file1=new File("BarChart.png");
ChartUtilities.saveChartAsPNG(file1, chart, 600, 400,info);
//System.out.println("image created");
}catch(Exception e)
{
System.out.println("image can not be created");
}
}
最佳答案
我建议你不要使用 GroupLayout
真的很难,而不是你可以尝试使用 GridBagLayout
,它更简单。
要将 JFreeChart
嵌入到您的 JPanel
中,请使用 ChartPanel
。
对您的 JFrame
使用 pack();
方法而不是 setSize()
。
我不建议您使用 new ImageIcon("BarChart.png")
,在这种情况下您可能会遇到文件路径问题。将您的“BarChart.png”添加到项目资源中,并借助 URL
获取它们,如下所示:new ImageIcon(getClass().getResource("BarChart.png"))
.
我已经更改了您的代码,检查一下:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.beans.Transient;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
public class Example extends JPanel {
public static void main(String... s){
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JScrollPane scrollPane = new JScrollPane(new Example());
f.getContentPane().add(scrollPane);
f.pack();
f.setVisible(true);
}
private JScrollPane pane;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTextField textField_4;
private JTextField textField_5;
private JTextField textField_6;
private JTextField textField_7;
private JTextField textField_8;
private JTextField textField_9;
private JTextField textField_10;
private JTextField textField_11;
private JTextField textField_12;
private JTextField textField_13;
private JTextField textField_14;
private JTextField textField_15;
private JTextField textField_16;
private JTextField textField_17;
private JTextField textField_18;
private JTextField textField_19;
private int a;
private boolean f;
public Example() {
setupPanel();
}
private JTextField createField(){
JTextField textField = new JTextField();
textField.setColumns(10);
return textField;
}
private void setupPanel() {
setBackground(new Color(138, 43, 226));
textField = createField();
textField_1 = createField();
textField_2 =createField();
textField_3 = createField();
textField_4 = createField();
textField_5 =createField();
textField_6 = createField();
textField_7 = createField();
textField_8 = createField();
textField_9 = createField();
textField_10 = createField();
textField_11 = createField();
textField_12 = createField();
textField_13 = createField();
textField_14 = createField();
textField_15 = createField();
textField_16 = createField();
textField_17 = createField();
textField_18 = createField();
textField_19 = createField();
JPanel panel = new GraphPanel();
final MyChart bar = new MyChart();
JButton btnCheckTheStatus = new JButton("Check the Status");
btnCheckTheStatus.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
if (textField.getText() != null)
a = Integer.parseInt(textField.getText());
if (a != 0) {
ChartPanel chartPanel = new ChartPanel(bar.prepareChart(a));
pane.setViewportView(chartPanel);
Example.this.revalidate();
}
f = true;
}
});
btnCheckTheStatus.setBackground(Color.GRAY);
setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.insets = new Insets(5, 5, 5, 5);
c.anchor = GridBagConstraints.WEST;
c.gridx = 0;
c.gridy = 0;
for(int i=1;i<6;i++){
JLabel l = new JLabel("statement "+i);
l.setFont(new Font("Vani", Font.PLAIN, 16));
add(l,c);
c.gridy ++;
}
c.gridy = 0;
c.gridx ++;
add(textField,c);
c.gridx ++;
add(textField_1,c);
c.gridx ++;
add(textField_2,c);
c.gridx ++;
add(textField_3,c);
c.gridy = 1;
c.gridx = 1;
add(textField_4,c);
c.gridx ++;
add(textField_5,c);
c.gridx ++;
add(textField_6,c);
c.gridx ++;
add(textField_7,c);
c.gridy = 2;
c.gridx = 1;
add(textField_8,c);
c.gridx ++;
add(textField_9,c);
c.gridx ++;
add(textField_10,c);
c.gridx ++;
add(textField_11,c);
c.gridy = 3;
c.gridx = 1;
add(textField_12,c);
c.gridx ++;
add(textField_13,c);
c.gridx ++;
add(textField_14,c);
c.gridx ++;
add(textField_15,c);
c.gridy = 4;
c.gridx = 1;
add(textField_16,c);
c.gridx ++;
add(textField_17,c);
c.gridx ++;
add(textField_18,c);
c.gridx ++;
add(textField_19,c);
c.gridx++;
add(btnCheckTheStatus,c);
c.gridy = 5;
c.gridx = 0;
c.gridwidth = 6;
add(panel,c);
pane = new JScrollPane();
c.gridx = 6;
c.gridheight = 7;
c.ipady= 0;
c.gridy = 0;
add(pane,c);
}
class GraphPanel extends JPanel {
JScrollPane scrollPane;
ImageIcon icon = new ImageIcon("BarChart.png");
ImageIcon icon1 = new ImageIcon(getClass().getResource("BarChart.png"));
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(icon.getImage(), 10, 10, 300, 200, null);
g.drawImage(icon1.getImage(), 320, 10, 300, 200, null);
}
@Override
@Transient
public Dimension getPreferredSize() {
return new Dimension(650,200);
}
}
class MyChart {
private int a;
private int b;
private int c;
private int d;
private int e;
public JFreeChart prepareChart(int a) {
this.a = a;
b = a + a;
c = a;
d = b;
e = a + b;
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.setValue(a, "Marks", "1");
dataset.setValue(b, "Marks", "2");
dataset.setValue(c, "Marks", "3");
dataset.setValue(d, "Marks", "4");
dataset.setValue(e, "Marks", "5");
JFreeChart chart = ChartFactory.createBarChart(
"Status of your thoughts", "Feild", "Status", dataset,
PlotOrientation.VERTICAL, false, true, false);
chart.setBackgroundPaint(Color.white);
chart.getTitle().setPaint(Color.blue);
CategoryPlot p = chart.getCategoryPlot();
p.setRangeGridlinePaint(Color.pink);
try {
final ChartRenderingInfo info = new ChartRenderingInfo(
new StandardEntityCollection());
final File file1 = new File("BarChart.png");
ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, info);
} catch (Exception e) {
System.out.println("image can not be created");
}
return chart;
}
}
}
关于java - 创建一个桌面应用程序以将我们的输入状态显示为图形,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20796195/
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