GUI中文乱码解决

//创建主题样式，避免中文乱码
  StandardChartTheme standardChartTheme = new StandardChartTheme("CN");
    // 设置标题字体
  standardChartTheme.setExtraLargeFont(new Font("宋体", Font.BOLD, 20));
    // 设置图例的字体
  standardChartTheme.setRegularFont(new Font("宋体", Font.PLAIN, 15));
    // 设置轴向的字体
  standardChartTheme.setLargeFont(new Font("宋体", Font.PLAIN, 15));
    // 应用主题样式
  ChartFactory.setChartTheme(standardChartTheme);

主体实例
 

3.  Integer [][]visitordata={{2004,1500},{2005,1450},{2006,2000},{2007,2050},{2008,2500},{2009,2000},{2010,1600},{2011,3000},{2012,3200},{2013,4000},{2014,3500},{2015,2000},{2016,2300}};
4.    String []title = {"年份","访问人数"};
5.    
6.    //显示数据到表格中
7.    DefaultTableModel model = new DefaultTableModel();
8.    model.setDataVector(visitordata, title);
9.    tablevisitor.setModel(model);
10.    
11.    //创建访问人数的图表
12.    DefaultCategoryDataset chart_dataset = new DefaultCategoryDataset();
13.    for(int i=0;i<12;i++)
14.    {
15.        chart_dataset.addValue(visitordata[i][1], "图书部访问人员统计数据", visitordata[i][0]);
16.    }
17.    
18.    JFreeChart lineChart = ChartFactory.createLineChart("图书馆访问人员统计表图","年份","访问人数",chart_dataset,PlotOrientation.VERTICAL, true, true, false);
19.    ChartPanel chartpanel = new ChartPanel(lineChart);
20.    chartpanel.setSize(panelChart.getSize());
21.    panelChart.removeAll();
22.    panelChart.add(chartpanel);
23.    panelChart.validate();
24.}


public CalculatorForm() {
        initComponents();
        lblOutput.setText("");
    }




1.private void AdditionButtonActionPerformed(java.awt.event.ActionEvent evt) {                                               
2.    // TODO add your handling code here:
3.    lblOutput.setText(Integer.toString(Integer.parseInt(txtNumber1.getText())
+Integer.parseInt(txtNumber2.getText())));
4.}
5.private void SubtractionButtonActionPerformed(java.awt.event.ActionEvent evt) {                                                  
6.    // TODO add your handling code here:
7.    lblOutput.setText(Integer.toString(Integer.parseInt(txtNumber1.getText())-Integer.parseInt(txtNumber2.getText())));
8. }                                                 
9.private void MultiplicationButtonActionPerformed(java.awt.event.ActionEvent evt) {                                                     
10.    // TODO add your handling code here:
11.    lblOutput.setText(Integer.toString(Integer.parseInt(txtNumber1.getText())
*Integer.parseInt(txtNumber2.getText())));
12.}                                                    
13.private void DivisionButtonActionPerformed(java.awt.event.ActionEvent evt) {                                               
14.    // TODO add your handling code here:
15.    lblOutput.setText(Integer.toString(Integer.parseInt(txtNumber1.getText())
/Integer.parseInt(txtNumber2.getText())));
16.}
17.private void ExponentialButtonActionPerformed(java.awt.event.ActionEvent evt) {                                               
18.    // TODO add your handling code here:
19.lblOutput.setText(Double.toString(Math.pow(Double.parseDouble(txtNumber1.getText()),
Double.parseDouble(txtNumber2.getText()))));
20.}




String Student[] = {"王宇东","黄智奇","岳泽宇","屈嘉尧","邓超","林一恒","刘新纪","肖佳乐","肖有坤","严立博"};
	double GPA[] = {3.38,3.0,2.98,3.01,2.87,3.4,2.9,3.0,2.9,2.9};
	
	public StudentForm() {
		initComponents();
		listStudent.setListData(Student);	//显示在列表中的学生姓名
	}
以下是列表的ValueChanged事件的代码。（StudentForm.java）
	private void listStudentValueChanged(javax.swing.event.ListSelectionEvent evt) {
        // T0D0 add your handling code here:
		int index = listStudent.getSelectedIndex();
		txtGPA.setText(GPA[index]+"");	//显示GPA
	}