多次按下排序按钮时排序表错误？ [英] Sorting Table is wrong when the sort button be pressed more than once?
本文介绍了多次按下排序按钮时排序表错误？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我这里有问题。我创建程序将数据添加到表中，并在按下按钮时对其进行排序。当我按下排序按钮一次，没有错。但是当我再次按下它是错误的。所以为什么？请帮我。
这是代码。
I have a problem here. I create program to add data to the table and sort it when i press the button. when i press the sort button once, it isn't wrong. but when i press again it is wrong. so why? please help me. this is the code.
Nama Class
Nama Class
public class Nama {
private String nama;
private int index;
public Nama(String n,int i){
nama=n;index=i;
}
void setData(String n,int i){
nama=n;index=i;
}
String nama(){
return nama;
}
int ind(){
return index;
}
public String toString(){
return(String.format("%s %d", nama,index));
}
}
MergeSort Class
MergeSort Class
import java.util.*;
public class MergeSortS{
public void merge_sort(int low,int high,Nama [] a){
int mid;
if(low<high) {
mid=(low+high)/2;
merge_sort(low,mid,a);
merge_sort(mid+1,high, a);
merge(low,mid,high,a);
}
}
public void merge(int low,int mid,int high,Nama [] a){
int h,i,j,k;
Nama b[]=new Nama[50];
h=low;
i=low;
j=mid+1;
while((h<=mid)&&(j<=high)){
if(a[h].nama().compareToIgnoreCase(a[j].nama())<0){
b[i]=a[h];
h++;
}
else{
b[i]=a[j];
j++;
}
i++;
}
if(h>mid){
for(k=j;k<=high;k++){
b[i]=a[k];
i++;
}
}
else{
for(k=h;k<=mid;k++){
b[i]=a[k];
i++;
}
}
for(k=low;k<=high;k++) a[k]=b[k];
}
public MergeSortS() {
}
}
小组类
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
/**
*
* @author Kareem
*/
public class Panel extends JPanel implements ActionListener{
JTable table;
JTextField tf1,tf2,tf3,tf4;
JButton b1,b2,b3,b4,b5,b6,b7;
Vector rows,columns,temp;
DefaultTableModel tabModel;
String[]data = new String[3];
String [] column = {"Nama", "Nim", "IP"};
Nama[] n,nim,ip;
MergeSortS mS;
int c=0,index=0;
public Panel(){
this.setBounds(0,0,1280, 800);
this.setLayout(null);
inaTf();
inaTab();
inaBut();
n= new Nama[50];
nim= new Nama[50];
ip= new Nama[50];
mS= new MergeSortS();
this.setVisible(true);
}
public void inaTab(){
rows=new Vector();
columns= new Vector();
temp= new Vector();
addColumns(column);
tabModel=new DefaultTableModel();
tabModel.setDataVector(rows,columns);
table = new JTable(tabModel);
table.setPreferredScrollableViewportSize(new
Dimension(500, 70));
table.setFillsViewportHeight(true);
table.setBounds(100,100,200,200);
JScrollPane scroll = new JScrollPane(table);
scroll.setBounds(50,50,400,400);
add(scroll);
}
public void inaBut(){
b1=new JButton("add Row");
b1.setBounds(50,600,90,25);
add(b1);
b1.addActionListener(this);
b2=new JButton("Delete Row");
b2.setBounds(170,600,90,25);
add(b2);
b2.addActionListener(this);
b3=new JButton("SortName");
b3.setBounds(290,600,120,25);
add(b3);
b3.addActionListener(this);
b5=new JButton("SortNim");
b5.setBounds(290,650,120,25);
add(b5);
b5.addActionListener(this);
b6=new JButton("SortIP");
b6.setBounds(290,700,120,25);
add(b6);
b6.addActionListener(this);
b4=new JButton("RESET");
b4.setBounds(170,650,90,25);
add(b4);
b4.addActionListener(this);
}
public void inaTf(){
tf1=new JTextField();
tf1.setBounds(640,50,90,25);
add(tf1);
JLabel l1= new JLabel("Nama \t: ");
l1.setBounds(530,50,90,25);
add(l1);
tf2=new JTextField();
tf2.setBounds(640,80,90,25);
add(tf2);
JLabel l2= new JLabel("Nim : ");
l2.setBounds(530,80,90,25);
add(l2);
tf3=new JTextField();
tf3.setBounds(640,110,90,25);
add(tf3);
JLabel l3= new JLabel("IPK : ");
l3.setBounds(530,110,90,25);
add(l3);
tf4=new JTextField();
tf4.setBounds(640,140,90,25);
add(tf4);
JLabel l4= new JLabel("Hapus Baris ke ");
l4.setBounds(530,140,120,25);
add(l4);
}
public void addRow()
{
Vector r;
r = createBlankElement();
rows.addElement(r);
table.addNotify();
}
public void addRow(String [] data)
{
Vector r=new Vector();
r = isi(data);
rows.addElement(r);
table.addNotify();
}
public Vector createBlankElement()
{
Vector t = new Vector();
t.addElement((String) " ");
t.addElement((String) " ");
t.addElement((String) " ");
return t;
}
public Vector isi(String[] data) {
Vector t = new Vector();
for(int j=0;j<3;j++){
t.addElement((String) data[j]);
}
return t;
}
public void addColumns(String[] colName) {
for(int i=0;i<colName.length;i++)
columns.addElement((String) colName[i]);
}
void deleteRow(int index) {
if(index!=-1) {
rows.removeElementAt(index);
table.addNotify();
}
}
@Override
public void actionPerformed(ActionEvent e) {
try{
if(e.getSource()==b1){
data[0]=tf1.getText()+" "+index;
n[index]=new Nama(data[0],index);
data[1]=tf2.getText();
nim[index]=new Nama(data[1],index);
data[2]=tf3.getText()+rows.size();
ip[index]=new Nama (data[2],index);
c=c+1;
index=index+1;
addRow(data);
}
if(e.getSource()==b2){
int i;
i=Integer.parseInt(tf4.getText());
deleteRow(i);
// for(;i<rows.size();i++){
// n[i]=n[i+1];
// }
}
if(e.getSource()==b3){
mS.merge_sort(0, rows.size()-1, n);
temp.setSize(rows.size());
for(int i=0;i<index;i++){
temp.set(i, rows.get(n[i].ind()));
}
for(int i=0;i<index;i++){
rows.set(i, temp.get(i));
}
}
if(e.getSource()==b4){
rows.setSize(0);
temp.setSize(0);
for(int i=0;i<index;i++)n[i]=null;
index=0;
}
if(e.getSource()==b5){
mS.merge_sort(0, rows.size()-1, nim);
temp.setSize(rows.size());
for(int i=0;i<rows.size();i++){
temp.set(i, rows.get(nim[i].ind()));
}
for(int i=0;i<rows.size();i++){
rows.set(i, temp.get(i));
}
}
if(e.getSource()==b6){
mS.merge_sort(0, rows.size()-1, ip);
temp.setSize(rows.size());
for(int i=0;i<rows.size();i++){
temp.add(i, rows.get(ip[i].ind()));
}
for(int i=0;i<rows.size();i++){
rows.set(i, temp.get(i));
}
}
repaint();
}
catch (Throwable t){
JOptionPane.showMessageDialog(null, "AAAAAA");
}
}
}
Frame Class
Frame Class
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
/**
*
* @author Kareem
*/
public class Frame extends JFrame {
public Frame(){
super("Penghitung Gaji");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLayout(null);
this.setSize(1280, 800);
this.getContentPane().add(new Panel());
this.setVisible(true);
}
public static void main(String[] args) {
Frame frame = new Frame();
}
}
谢谢。抱歉我的英语不好。
Thanks. And Sorry for my bad english.
推荐答案
Dashing through the snow
In a one-horse open sleigh
O'er the fields we go
Laughing all the way
Bells on bobtail ring'
Making spirits bright
What fun it is to ride and sing
A sleighing song tonight!
Jingle bells, jingle bells,
Jingle all the way.
Oh! what fun it is to ride
In a one-horse open sleigh.
Jingle bells, jingle bells, ....
-
从代码中唱歌，如果不是这首你最喜欢的歌，请向我道歉
song singing from code, please to apologize me if isn't this one your favorite song
无法评论或建议，在我的代码中排除使用的LayoutManager，我走的路径最不耐烦，我无尽的懒惰
can't comment or suggesting, excluding used LayoutManager in my code, I walked the path of least resistance, my endless lazyness
。
。
。. . .
代码
。
import java.awt.BorderLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ArrayList; import java.util.List; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField; import javax.swing.ListSelectionModel; import javax.swing.RowSorter.SortKey; import javax.swing.ScrollPaneConstants; import javax.swing.SortOrder; import javax.swing.SwingConstants; import javax.swing.border.EmptyBorder; import javax.swing.table.DefaultTableCellRenderer; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableRowSorter; public class MyFrame { private JFrame frame = new JFrame(); private JTable table; private JPanel buttonPanel = new JPanel(); private JPanel buttonPanelSouth = new JPanel(); private JPanel textFieldPanel = new JPanel(); private JPanel northPanel = new JPanel(); private JPanel centerPanel = new JPanel(); private JLabel l1, l2, l3, l4; private JTextField tf1, tf2, tf3, tf4; private JButton b1, b2, b3, b4, b5, b6, b7; private String[] columnNames = {"Nama", "Nim", "IP", "Hapus Baris ke"}; private Object[][] data = { {"igor", "B01_125-358", "1.124.01.125", true}, {"lenka", "B21_002-242", "21.124.01.002", true}, {"peter", "B99_001-358", "99.124.01.001", false}, {"zuza", "B12_100-242", "12.124.01.100", true}, {"jozo", "BUS_011-358", "99.124.01.011", false}, {"nora", "B09_154-358", "9.124.01.154", false}, {"xantipa", "B01_001-358", "1.124.01.001", false},}; private DefaultTableModel model = new DefaultTableModel(data, columnNames) { private static final long serialVersionUID = 1L; @Override public boolean isCellEditable(int row, int column) { switch (column) { case 3: return true; default: return false; } } @Override public Class getColumnClass(int column) { return getValueAt(0, column).getClass(); } }; public MyFrame() { table = new JTable(model); table.setAutoCreateRowSorter(true); table.setPreferredScrollableViewportSize(table.getPreferredSize()); table.setFillsViewportHeight(true); table.getSelectionModel().setSelectionMode( ListSelectionModel.SINGLE_SELECTION); DefaultTableCellRenderer stringRenderer = (DefaultTableCellRenderer) table.getDefaultRenderer(String.class); stringRenderer.setHorizontalAlignment(SwingConstants.CENTER); JScrollPane pane = new JScrollPane(table, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED); centerPanel.setLayout(new BorderLayout(10, 10)); centerPanel.setBorder(new EmptyBorder(10, 10, 10, 10)); centerPanel.add(pane); centerPanel.add(pane); // b1 = new JButton("add Row"); b1.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { model.addRow(new Object[]{(tf1.getText()).trim(), (tf2.getText()).trim(), (tf3.getText()).trim(), true}); } }); b2 = new JButton("Delete Row"); b2.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { int rowToDelete = 0; int rowToModel = 0; if (table.getSelectedRow() > -1) { rowToDelete = table.getSelectedRow(); rowToModel = table.convertRowIndexToModel(rowToDelete); model.removeRow(rowToModel); } } }); b3 = new JButton("RESET"); b3.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { table.getRowSorter().setSortKeys(null); } }); b4 = new JButton("SortName"); b4.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { table.getRowSorter().toggleSortOrder(0); } }); b5 = new JButton("SortNim"); b5.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { TableRowSorter rowSorter = (TableRowSorter) table.getRowSorter(); List<SortKey> sortKeys = new ArrayList<SortKey>(); SortKey sortKey = new SortKey(1, SortOrder.ASCENDING); sortKeys.add(sortKey); rowSorter.setSortKeys(sortKeys); rowSorter.sort(); } }); b6 = new JButton("SortIP"); b6.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { TableRowSorter rowSorter = (TableRowSorter) table.getRowSorter(); List<SortKey> sortKeys = new ArrayList<SortKey>(); SortKey sortKey = new SortKey(2, SortOrder.DESCENDING); sortKeys.add(sortKey); SortKey sortKey1 = new SortKey(1, SortOrder.ASCENDING); sortKeys.add(sortKey1); SortKey sortKey2 = new SortKey(0, SortOrder.UNSORTED); sortKeys.add(sortKey2); rowSorter.setSortKeys(sortKeys); rowSorter.sort(); } }); b7 = new JButton("SortIP"); buttonPanel.setLayout(new GridLayout(1, 0, 50, 0)); buttonPanel.setBorder(new EmptyBorder(2, 10, 2, 10)); buttonPanel.add(b1); buttonPanel.add(b2); // buttonPanelSouth.setLayout(new GridLayout(1, 4, 5, 5)); buttonPanelSouth.add(b3); buttonPanelSouth.add(b7); b7.setVisible(false); buttonPanelSouth.add(b4); buttonPanelSouth.add(b5); buttonPanelSouth.add(b6); centerPanel.add(buttonPanelSouth, BorderLayout.SOUTH); // l1 = new JLabel("Nama : ", JLabel.RIGHT); tf1 = new JTextField(); l2 = new JLabel("Nim : ", JLabel.RIGHT); tf2 = new JTextField(); l3 = new JLabel("IPK : ", JLabel.RIGHT); tf3 = new JTextField(); l4 = new JLabel("Hapus Baris ke :", JLabel.RIGHT); tf4 = new JTextField(); textFieldPanel.setLayout(new GridLayout(4, 2, 10, 10)); textFieldPanel.setBorder(new EmptyBorder(10, 10, 10, 10)); textFieldPanel.add(l1); textFieldPanel.add(tf1); textFieldPanel.add(l2); textFieldPanel.add(tf2); textFieldPanel.add(l3); textFieldPanel.add(tf3); textFieldPanel.add(l4); textFieldPanel.add(tf4); // northPanel.setLayout(new BorderLayout()); northPanel.add(textFieldPanel); northPanel.add(buttonPanel, BorderLayout.SOUTH); // frame.add(northPanel, BorderLayout.NORTH); frame.add(centerPanel); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } public static void main(String[] arg) { java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { MyFrame myFrame = new MyFrame(); } }); } }这篇关于多次按下排序按钮时排序表错误？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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