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import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class TestJTable extends JFrame{
private JTable table;
private DefaultTableModel tableModel;
private JPanel panel;
public TestJTable(){
super("JTable");
String[] tableHeader = {"File Name", "Code Lines", "Comment Lines", "Blank Lines"};
Vector<String> vectorHeader = new Vector<String> ();
for (int i=0; i<tableHeader.length; i++)
vectorHeader.add(tableHeader[i]);
Vector<String> value = new Vector<String> ();
value.add("c.java");
value.add("51");
value.add("10");
value.add("5");
tableModel = new DefaultTableModel(value, vectorHeader);
table = new JTable(tableModel);
//行高
table.setRowHeight(25);
table.setBounds(new Rectangle( 0, 235, 638, 249));
//设置表格列宽
table.getColumn("File Name").setMaxWidth(150);
table.getColumn("Code Lines").setMaxWidth(100);
table.getColumn("Comment Lines").setMaxWidth(100);
table.getColumn("Blank Lines").setMaxWidth(100);
//设置表格内部字体
table.setFont(new java.awt.Font("Serif", Font.PLAIN, 14));
//设置表头字体
table.getTableHeader().setFont(new java.awt.Font("Serif", Font.PLAIN, 14));
//设置选择模式,使其能选择一行或多行
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
//设置列不可拖动
table.getTableHeader().setReorderingAllowed(false);
panel = new JPanel();
panel.add(table);
add(panel, BorderLayout.CENTER);
validate();
setVisible(true);
setSize(300, 200);
}
public static void main(String args[]){
TestJTable test = new TestJTable();
}
}
Exception in thread "main" java.lang.ClassCastException: java.lang.String
at javax.swing.table.DefaultTableModel.justifyRows(Unknown Source)
at javax.swing.table.DefaultTableModel.setDataVector(Unknown Source)
at javax.swing.table.DefaultTableModel.<init>(Unknown Source)
at TestJTable.<init>(TestJTable.java:28)
at TestJTable.main(TestJTable.java:64)
setVisible(true);
setSize(300, 200);
import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class TestJTable extends JFrame{
private JTable table;
private DefaultTableModel tableModel;
private JPanel panel;
public TestJTable(){
super("JTable");
String[] tableHeader = {"File Name", "Code Lines", "Comment Lines", "Blank Lines"};
Vector<String> vectorHeader = new Vector<String> ();
for (int i=0; i<tableHeader.length; i++)
vectorHeader.add(tableHeader[i]);
Vector<String> value = new Vector<String> ();
value.add("c.java");
value.add("51");
value.add("10");
value.add("5");
Vector values = new Vector();
values.add(value);
tableModel = new DefaultTableModel(values, vectorHeader);
table = new JTable(tableModel);
//行高
table.setRowHeight(25);
table.setBounds(new Rectangle( 0, 235, 638, 249));
//设置表格列宽
table.getColumn("File Name").setMaxWidth(150);
table.getColumn("Code Lines").setMaxWidth(100);
table.getColumn("Comment Lines").setMaxWidth(100);
table.getColumn("Blank Lines").setMaxWidth(100);
//设置表格内部字体
table.setFont(new java.awt.Font("Serif", Font.PLAIN, 14));
//设置表头字体
table.getTableHeader().setFont(new java.awt.Font("Serif", Font.PLAIN, 14));
//设置选择模式,使其能选择一行或多行
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
//设置列不可拖动
// table.getTableHeader().setReorderingAllowed(false);
panel = new JPanel();
panel.add(table);
add(panel, BorderLayout.CENTER);
validate();
setVisible(true);
setSize(300, 200);
}
public static void main(String args[]){
TestJTable test = new TestJTable();
}
}