Question

JAVA中Jtable的显示方式

想把获得的boolean类型输出时true/false显示Char类型男/女
StuOpDb op = new StuOpDb();
List list = op.getList();
Object[][] data = new Object[list.size()][6];
for (int i = 0; i < list.size(); i++) {
data[i][0] = ((Student) list.get(i)).getStuNum();
data[i][1] = ((Student) list.get(i)).getStuName();
data[i][2] = ((Student) list.get(i)).getStuSex();//加if判断也不行
data[i][3] = ((Student) list.get(i)).getMathScore();
data[i][4] = ((Student) list.get(i)).getCnScore();
data[i][5] = ((Student) list.get(i)).getEnScore();
}

table = new JTable();
table.setModel(new DefaultTableModel(data, new String[] { "学号",
"姓名", "性别", "数学成绩", "语文成绩", "英语成绩" }) {
Class[] columnTypes = new Class[] { Integer.class,
String.class, Boolean.class, Float.class,
Float.class, Float.class };

public Class getColumnClass(int columnIndex) {
return columnTypes[columnIndex];
}

public boolean isCellEditable(int row, int column) {// 指定某单元格是否可编辑
// if(column!=0)return true;
return false;
}
});
现在data[i][2] = ((Student) list.get(i)).getStuSex();获得的是boolean型
Class[] columnTypes = new Class[] { Integer.class,
String.class, Boolean.class, Float.class,//Boolean改成Char也不行
Float.class, Float.class };

Answer 1

数据不要动，在table显示时根据要求改一下
columnTypes里 性别那一栏用String.class
for(int i = 0; i <tab.getRowCount(); i++){
tab.setValueAt( (boolean) tab.getValueAt(i, 2)?"男":"女", i, 2);
}

Answer 2

看一下Oracle 官网的Table Renderer例子吧 .
http://docs.oracle.com/javase/tutorial/displayCode.html?code=http://docs.oracle.com/javase/tutorial/uiswing/examples/components/TableRenderDemoProject/src/components/TableRenderDemo.java