JTable学习
package table;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JTable;
import java.awt.Color;
import java.awt.GridLayout;
import javax.swing.table.TableColumn;
public class JTableDemo {
public static void main(String[] args) {
/*
* 构造函数有很多下面先介绍几个: JTable() JTable(int numRows, int numColumns)
* JTable(Object[][] rowData, Object[] columnNames)
*/
JTable example1 = new JTable();// 看不到但存在
JTable example2 = new JTable(8, 6);
final Object[] columnNames = { "姓名", "性别", "家庭地址",// 列名最好用final修饰
"电话号码", "生日", "工作", "收入", "婚姻状况", "恋爱状况" };
Object[][] rowData = {
{ "ddd", "男", "江苏南京", "1378313210", "03/24/1985", "学生", "寄生中",
"未婚", "没" },
{ "eee", "女", "江苏南京", "13645181705", "xx/xx/1985", "家教", "未知",
"未婚", "好象没" },
{ "fff", "男", "江苏南京", "13585331486", "12/08/1985", "汽车推销员",
"不确定", "未婚", "有" },
{ "ggg", "女", "江苏南京", "81513779", "xx/xx/1986", "宾馆服务员",
"确定但未知", "未婚", "有" },
{ "hhh", "男", "江苏南京", "13651545936", "xx/xx/1985", "学生", "流放中",
"未婚", "无数次分手后没有" } };
JTable friends = new JTable(rowData, columnNames);
friends.setPreferredScrollableViewportSize(new Dimension(600, 100));// 设置表格的大小
friends.setRowHeight(30);// 设置每行的高度为20
friends.setRowHeight(0, 20);// 设置第1行的高度为15
friends.setRowMargin(5);// 设置相邻两行单元格的距离
friends.setRowSelectionAllowed(true);// 设置可否被选择.默认为false
friends.setSelectionBackground(Color.white);// 设置所选择行的背景色
friends.setSelectionForeground(Color.red);// 设置所选择行的前景色
friends.setGridColor(Color.black);// 设置网格线的颜色
friends.selectAll();// 选择所有行
friends.setRowSelectionInterval(0, 2);// 设置初始的选择行,这里是1到3行都处于选择状态
friends.clearSelection();// 取消选择
friends.setDragEnabled(false);// 不懂这个
friends.setShowGrid(false);// 是否显示网格线
friends.setShowHorizontalLines(true);// 是否显示水平的网格线
friends.setShowVerticalLines(true);// 是否显示垂直的网格线
friends.setValueAt("tt", 0, 0);// 设置某个单元格的值,这个值是一个对象
friends.doLayout();
friends.setBackground(Color.lightGray);
JScrollPane pane1 = new JScrollPane(example1);// JTable最好加在JScrollPane上
JScrollPane pane2 = new JScrollPane(example2);
JScrollPane pane3 = new JScrollPane(friends);
JPanel panel = new JPanel(new GridLayout(0, 1));
panel.setPreferredSize(new Dimension(600, 400));
panel.setBackground(Color.black);
panel.add(pane1);
panel.add(pane2);
panel.add(pane3);
JFrame frame = new JFrame("JTableDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(panel);
frame.pack();
frame.show();
}
}