Java JTabel单个单元格文本对齐
基本上,我有一个Java JTabel单个单元格文本对齐,java,swing,jtable,alignment,tablecellrenderer,Java,Swing,Jtable,Alignment,Tablecellrenderer,基本上,我有一个JTable,这个JTabel将在一个单元格中有一个产品,然后在该单元格中直接低于成本 产品名称应与左侧对齐。 产品成本应与右侧一致 实际上,我并不关心每行中其他单元格的对齐方式 所以我需要设置单个单元格或单个行的对齐方式。我已经找到了设置表对齐方式的方法,以及设置列对齐方式的方法,但从未找到行/单个单元格的方法 sscce: public class Main extends JFrame{ public static void main(String args[]){
JTable
,这个JTabel
将在一个单元格中有一个产品,然后在该单元格中直接低于成本
产品名称应与左侧对齐。
产品成本应与右侧一致
实际上,我并不关心每行中其他单元格的对齐方式
所以我需要设置单个单元格或单个行的对齐方式。我已经找到了设置表对齐方式的方法,以及设置列对齐方式的方法,但从未找到行/单个单元格的方法
sscce:
public class Main extends JFrame{
public static void main(String args[]){
new Main();
}
public Main(){
super("Demo");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setExtendedState(MAXIMIZED_BOTH);
setVisible(true);
setLayout(new BorderLayout());
TableModel dataModel = new AbstractTableModel() {
Object rows[] = new Object[50];
public int getColumnCount(){return 1;}
public int getRowCount(){return rows.length;}
public Object getValueAt(int row, int col){
return rows[row];
}
public boolean isCellEditable(int row, int col){
return false;
}
public void setValueAt(Object value, int row, int col) {
rows[row] = value;
fireTableCellUpdated(row,0);
}
};
JTable receipt = new JTable(dataModel);
receipt.setBorder(BorderFactory.createEtchedBorder());
receipt.setShowGrid(false);
add(receipt,BorderLayout.CENTER);
for(int i = 0; i < 10; i+=2){
receipt.setValueAt("ProductNameHere",i,0);
receipt.setValueAt("Cost",i+1,0);
}
validate();
repaint();
}
}
public类主框架{
公共静态void main(字符串参数[]){
新的Main();
}
公用干管(){
超级(“演示”);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setExtendedState(最大化两个);
setVisible(真);
setLayout(新的BorderLayout());
TableModel dataModel=新的AbstractTableModel(){
对象行[]=新对象[50];
public int getColumnCount(){return 1;}
public int getRowCount(){return rows.length;}
公共对象getValueAt(int行,int列){
返回行[行];
}
公共布尔值可编辑(int行,int列){
返回false;
}
public void setValueAt(对象值、整行、整列){
行[行]=值;
fireTableCellUpdated(第0行);
}
};
JTable receive=新的JTable(数据模型);
receipt.setboorder(BorderFactory.createtchedborder());
收据。setShowGrid(假);
添加(收据、边框布局、中心);
对于(int i=0;i<10;i+=2){
receive.setValueAt(“ProductNameHere”,i,0);
收据。setValueAt(“成本”,i+1,0);
}
验证();
重新油漆();
}
}
for编号是右对齐的标签。在这种情况下,不需要特殊的渲染器右对齐INT\u COL
,它被标记为Index
,并且具有类型Integer.class
如果这没有帮助,请编辑您的问题,包括显示您当前方法和成本的数据类型
附录:或者,重写prepareRender()
,如图所示
SSCCE:
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.EventQueue;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public class Main extends JFrame {
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new Main();
}
});
}
public Main() {
super("Demo");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
TableModel dataModel = new AbstractTableModel() {
Object rows[] = new Object[10];
@Override
public int getColumnCount() {
return 1;
}
@Override
public int getRowCount() {
return rows.length;
}
@Override
public Object getValueAt(int row, int col) {
return rows[row];
}
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
@Override
public void setValueAt(Object value, int row, int col) {
rows[row] = value;
fireTableCellUpdated(row, 0);
}
};
JTable receipt = new JTable(dataModel) {
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int col) {
JLabel c = (JLabel) super.prepareRenderer(renderer, row, col);
if (row % 2 == 0) {
c.setHorizontalAlignment(JLabel.LEFT);
} else {
c.setHorizontalAlignment(JLabel.RIGHT);
}
return c;
}
};
receipt.setBorder(BorderFactory.createEtchedBorder());
receipt.setShowGrid(false);
add(receipt, BorderLayout.CENTER);
for (int i = 0; i < 10; i += 2) {
receipt.setValueAt("ProductNameHere", i, 0);
receipt.setValueAt(Integer.valueOf(i + 1), i + 1, 0);
}
pack();
setLocationByPlatform(true);
setVisible(true);
}
}
导入java.awt.BorderLayout;
导入java.awt.Component;
导入java.awt.EventQueue;
导入javax.swing.BorderFactory;
导入javax.swing.JFrame;
导入javax.swing.JLabel;
导入javax.swing.JTable;
导入javax.swing.table.AbstractTableModel;
导入javax.swing.table.TableCellRenderer;
导入javax.swing.table.TableModel;
公共类主框架{
公共静态void main(字符串参数[]){
invokeLater(新的Runnable(){
@凌驾
公开募捐{
新的Main();
}
});
}
公用干管(){
超级(“演示”);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
TableModel dataModel=新的AbstractTableModel(){
对象行[]=新对象[10];
@凌驾
public int getColumnCount(){
返回1;
}
@凌驾
public int getRowCount(){
返回rows.length;
}
@凌驾
公共对象getValueAt(整数行,整数列){
返回行[行];
}
@凌驾
公共布尔值可编辑(int行,int列){
返回false;
}
@凌驾
public void setValueAt(对象值、整行、整列){
行[行]=值;
fireTableCellUpdated(第0行);
}
};
JTable receive=新JTable(数据模型){
@凌驾
公共组件预渲染器(TableCellRenderer渲染器,int行,int列){
JLabel c=(JLabel)super.prepareRenderer(渲染器,行,列);
如果(第%2行==0){
c、 设置水平对齐(JLabel.左);
}否则{
c、 设置水平对齐(JLabel.RIGHT);
}
返回c;
}
};
receipt.setboorder(BorderFactory.createtchedborder());
收据。setShowGrid(假);
添加(收据、边框布局、中心);
对于(int i=0;i<10;i+=2){
receive.setValueAt(“ProductNameHere”,i,0);
receive.setValueAt(整数.valueOf(i+1),i+1,0);
}
包装();
setLocationByPlatform(真);
setVisible(真);
}
}
for编号是右对齐的标签。在这种情况下,不需要特殊的渲染器右对齐INT\u COL
,它被标记为Index
,并且具有类型Integer.class
如果这没有帮助,请编辑您的问题,包括显示您当前方法和成本的数据类型
附录:或者,重写prepareRender()
,如图所示
SSCCE:
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.EventQueue;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public class Main extends JFrame {
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new Main();
}
});
}
public Main() {
super("Demo");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
TableModel dataModel = new AbstractTableModel() {
Object rows[] = new Object[10];
@Override
public int getColumnCount() {
return 1;
}
@Override
public int getRowCount() {
return rows.length;
}
@Override
public Object getValueAt(int row, int col) {
return rows[row];
}
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
@Override
public void setValueAt(Object value, int row, int col) {
rows[row] = value;
fireTableCellUpdated(row, 0);
}
};
JTable receipt = new JTable(dataModel) {
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int col) {
JLabel c = (JLabel) super.prepareRenderer(renderer, row, col);
if (row % 2 == 0) {
c.setHorizontalAlignment(JLabel.LEFT);
} else {
c.setHorizontalAlignment(JLabel.RIGHT);
}
return c;
}
};
receipt.setBorder(BorderFactory.createEtchedBorder());
receipt.setShowGrid(false);
add(receipt, BorderLayout.CENTER);
for (int i = 0; i < 10; i += 2) {
receipt.setValueAt("ProductNameHere", i, 0);
receipt.setValueAt(Integer.valueOf(i + 1), i + 1, 0);
}
pack();
setLocationByPlatform(true);
setVisible(true);
}
}
导入java.awt.BorderLayout;
导入java.awt.Component;
导入java.awt.EventQueue;
导入javax.swing.BorderFactory;
导入javax.swing.JFrame;
导入javax.swing.JLabel;
导入javax.swing.JTable;
导入javax.swing.table.AbstractTableModel;
导入javax.swing.table.TableCellRenderer;
导入javax.swing.table.TableModel;
公共类主框架{
公共静态void main(字符串参数[]){
invokeLater(新的Runnable(){
@凌驾
公开募捐{
新的Main();
}
});
}
公用干管(){
超级(“演示”);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
TableModel dataModel=新的AbstractTableModel(){
对象行[]=ne