Java 将arrayList数据加载到JTable中
我正在尝试使用名为Java 将arrayList数据加载到JTable中,java,swing,arraylist,jtable,grid-layout,Java,Swing,Arraylist,Jtable,Grid Layout,我正在尝试使用名为FootballClub的方法设置项目,到目前为止一切正常。 但后来我从中创建了一个arrayList,不知何故我找不到一种方法将这些信息存储到JTable中。 问题是我找不到设置固定行数的方法 这是我的密码: 职业英语: import javax.swing.*; import javax.swing.table.*; import java.awt.*; public class startLeague implements LeagueManager{ //setti
FootballClub
的方法设置项目,到目前为止一切正常。
但后来我从中创建了一个arrayList,不知何故我找不到一种方法将这些信息存储到JTable中。
问题是我找不到设置固定行数的方法
这是我的密码:
职业英语:
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
public class startLeague implements LeagueManager{
//setting the frame and other components to appear
public startLeague(){
JButton createTeam = new JButton("Create Team");
JButton deleteTeam = new JButton("Delete Team");
JFrame frame = new JFrame("Premier League System");
JPanel panel = new JPanel();
frame.setSize(1280, 800);
frame.setVisible(true);
frame.add(panel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String col[] = {"Pos","Team","P", "W", "L", "D", "MP", "GF", "GA", "GD"};
panel.setLayout(new GridLayout(20, 20));
panel.add(createTeam);
panel.add(deleteTeam);
panel.add(new JLabel(""));
//JLabels to fill the space
}
}
足球俱乐部课程:
import java.util.ArrayList;
public class FootballClub extends SportsClub{
FootballClub(int position, String name, int points, int wins, int defeats, int draws, int totalMatches, int goalF, int goalA, int goalD){
this.position = position;
this.name = name;
this.points = points;
this.wins = wins;
this.defeats = defeats;
this.draws = draws;
this.totalMatches = totalMatches;
this.goalF = goalF;
this.goalA = goalA;
this.goalD = goalD;
}
体育俱乐部课程(摘要):
最后是LeagueManager,它是一个界面:
import java.util.ArrayList;
public interface LeagueManager {
ArrayList<FootballClub> originalLeagueTable = new ArrayList<FootballClub>();
FootballClub arsenal = new FootballClub(1, "Arsenal", 35, 11, 2, 2, 15, 30, 11, 19);
FootballClub liverpool = new FootballClub(2, "Liverpool", 30, 9, 3, 3, 15, 34, 18, 16);
FootballClub chelsea = new FootballClub(3, "Chelsea", 30, 9, 2, 2, 15, 30, 11, 19);
FootballClub mCity = new FootballClub(4, "Man City", 29, 9, 2, 4, 15, 41, 15, 26);
FootballClub everton = new FootballClub(5, "Everton", 28, 7, 1, 7, 15, 23, 14, 9);
FootballClub tot = new FootballClub(6, "Tottenham", 27, 8, 4, 3, 15, 15, 16, -1);
FootballClub newcastle = new FootballClub(7, "Newcastle", 26, 8, 5, 2, 15, 20, 21, -1);
FootballClub south = new FootballClub(8, "Southampton", 23, 6, 4, 5, 15, 19, 14, 5);
}
import java.util.ArrayList;
公共接口联盟经理{
ArrayList originalLeagueTable=新ArrayList();
足球俱乐部阿森纳=新足球俱乐部(1,“阿森纳”,35,11,2,2,15,30,11,19);
利物浦足球俱乐部=新的足球俱乐部(2,“利物浦”,30,9,3,3,15,34,18,16);
足球俱乐部切尔西=新足球俱乐部(3,“切尔西”,30,9,2,2,15,30,11,19);
足球俱乐部mCity=新足球俱乐部(4,“曼城”,29,9,2,4,15,41,15,26);
足球俱乐部埃弗顿=新的足球俱乐部(5,“埃弗顿”,28,7,1,7,15,23,14,9);
足球俱乐部tot=新足球俱乐部(6,“托特纳姆”,27、8、4、3、15、15、16、-1);
纽卡斯尔足球俱乐部=新的足球俱乐部(7,“纽卡斯尔”,26,8,5,2,15,20,21,-1);
足球俱乐部南部=新足球俱乐部(8,“南安普敦”,23,6,4,5,15,19,14,5);
}
谁能帮帮我吗?
我已经试了好几天了。
多谢各位
“问题是我找不到设置固定行数的方法”
您不需要设置行数。使用表格模型
。特别是DefaultTableModel
String col[] = {"Pos","Team","P", "W", "L", "D", "MP", "GF", "GA", "GD"};
DefaultTableModel tableModel = new DefaultTableModel(col, 0);
// The 0 argument is number rows.
JTable table = new JTable(tableModel);
然后,您可以使用对象[]
Object[] objs = {1, "Arsenal", 35, 11, 2, 2, 15, 30, 11, 19};
tableModel.addRow(objs);
可以循环添加对象[]数组
注意:JTable当前不允许将输入数据实例化为ArrayList
。它必须是向量
或数组
见和。而且
“我从中创建了一个arrayList,但不知何故,我找不到将此信息存储到JTable中的方法。”
您可以这样做来添加数据
ArrayList<FootballClub> originalLeagueList = new ArrayList<FootballClub>();
originalLeagueList.add(new FootballClub(1, "Arsenal", 35, 11, 2, 2, 15, 30, 11, 19));
originalLeagueList.add(new FootballClub(2, "Liverpool", 30, 9, 3, 3, 15, 34, 18, 16));
originalLeagueList.add(new FootballClub(3, "Chelsea", 30, 9, 2, 2, 15, 30, 11, 19));
originalLeagueList.add(new FootballClub(4, "Man City", 29, 9, 2, 4, 15, 41, 15, 26));
originalLeagueList.add(new FootballClub(5, "Everton", 28, 7, 1, 7, 15, 23, 14, 9));
originalLeagueList.add(new FootballClub(6, "Tottenham", 27, 8, 4, 3, 15, 15, 16, -1));
originalLeagueList.add(new FootballClub(7, "Newcastle", 26, 8, 5, 2, 15, 20, 21, -1));
originalLeagueList.add(new FootballClub(8, "Southampton", 23, 6, 4, 5, 15, 19, 14, 5));
for (int i = 0; i < originalLeagueList.size(); i++){
int position = originalLeagueList.get(i).getPosition();
String name = originalLeagueList.get(i).getName();
int points = originalLeagueList.get(i).getPoinst();
int wins = originalLeagueList.get(i).getWins();
int defeats = originalLeagueList.get(i).getDefeats();
int draws = originalLeagueList.get(i).getDraws();
int totalMatches = originalLeagueList.get(i).getTotalMathces();
int goalF = originalLeagueList.get(i).getGoalF();
int goalA = originalLeagueList.get(i).getGoalA();
in ttgoalD = originalLeagueList.get(i).getTtgoalD();
Object[] data = {position, name, points, wins, defeats, draws,
totalMatches, goalF, goalA, ttgoalD};
tableModel.add(data);
}
ArrayList originalLeagueList=new ArrayList();
新增(新足球俱乐部(1,“阿森纳”,35、11、2、2、15、30、11、19);
新增(新足球俱乐部(2,“利物浦”,30、9、3、3、15、34、18、16);
新增(新足球俱乐部(3,“切尔西”,30、9、2、2、15、30、11、19);
新增(新足球俱乐部(4,“曼城”,29、9、2、4、15、41、15、26);
添加(新足球俱乐部(5,“埃弗顿”,28,7,1,7,15,23,14,9);
新增(新足球俱乐部(6,“托特纳姆”,27、8、4、3、15、15、16、-1);
新增(新足球俱乐部(7,“纽卡斯尔”,26、8、5、2、15、20、21、-1);
新增(新足球俱乐部(8,“南安普敦”,23、6、4、5、15、19、14、5);
对于(int i=0;i
您可能需要使用表格模型
如何实现自己的TableModel
public class FootballClubTableModel extends AbstractTableModel {
private List<FootballClub> clubs ;
private String[] columns ;
public FootBallClubTableModel(List<FootballClub> aClubList){
super();
clubs = aClubList ;
columns = new String[]{"Pos","Team","P", "W", "L", "D", "MP", "GF", "GA", "GD"};
}
// Number of column of your table
public int getColumnCount() {
return columns.length ;
}
// Number of row of your table
public int getRowsCount() {
return clubs.size();
}
// The object to render in a cell
public Object getValueAt(int row, int col) {
FootballClub club = clubs.get(row);
switch(col) {
case 0: return club.getPosition();
// to complete here...
default: return null;
}
}
// Optional, the name of your column
public String getColumnName(int col) {
return columns[col] ;
}
}
希望能有帮助
我从中创建了一个arrayList,但不知怎的,我找不到将这些信息存储到JTable中的方法
DefaultTableModel不支持显示存储在ArrayList中的自定义对象。您需要创建一个自定义的TableModel
你可以查一下。它是一个可重用的类,将使用反射查找足球俱乐部类中的所有数据并显示在JTable中
或者,您可以扩展上述链接中的行表模型
,通过实现一些方法,更容易创建自己的自定义表模型。JButtomTableModel.java
源代码提供了一个完整的示例,说明了如何执行此操作。您可以像我对我的列表 或任何其他Arraylist所做的那样,键入从另一个名为PingScan的类返回的内容,该类返回List>,因为它实现了服务执行器。不管怎样,代码记录中指出,您可以使用foreach并从列表中检索数据
PingScan p = new PingScan();
List<Future<String>> scanResult = p.checkThisIP(jFormattedTextField1.getText(), jFormattedTextField2.getText());
for (final Future<String> f : scanResult) {
try {
if (f.get() instanceof String) {
String ip = f.get();
Object[] data = {ip};
tableModel.addRow(data);
}
} catch (InterruptedException | ExecutionException ex) {
Logger.getLogger(gui.class.getName()).log(Level.SEVERE, null, ex);
}
}
PingScan p=new PingScan();
List scanResult=p.checkThisIP(jFormattedTextField1.getText(),jFormattedTextField2.getText());
对于(最终未来f:scanResult){
试一试{
if(f.get()instanceof String){
字符串ip=f.get();
对象[]数据={ip};
tableModel.addRow(数据);
}
}捕获(InterruptedException | ExecutionException ex){
Logger.getLogger(gui.class.getName()).log(Level.SEVERE,null,ex);
}
}
像我这样的初学者的基本方法
public void loadDataToJtable(ArrayList<String> liste){
rows = table.getRowCount();
cols = table.getColumnCount();
for (int i = 0; i < rows ; i++) {
for ( int k = 0; k < cols ; k++) {
for (int h = 0; h < list1.size(); h++) {
String b = list1.get(h);
b = table.getValueAt(i, k).toString();
}
}
}
}
public void loadDataToJtable(ArrayList列表){
rows=table.getRowCount();
cols=table.getColumnCount();
对于(int i=0;i
我不认为JTable将ArrayList作为数据参数。你需要一个向量或一个二维数组所以,currentl
PingScan p = new PingScan();
List<Future<String>> scanResult = p.checkThisIP(jFormattedTextField1.getText(), jFormattedTextField2.getText());
for (final Future<String> f : scanResult) {
try {
if (f.get() instanceof String) {
String ip = f.get();
Object[] data = {ip};
tableModel.addRow(data);
}
} catch (InterruptedException | ExecutionException ex) {
Logger.getLogger(gui.class.getName()).log(Level.SEVERE, null, ex);
}
}
public void loadDataToJtable(ArrayList<String> liste){
rows = table.getRowCount();
cols = table.getColumnCount();
for (int i = 0; i < rows ; i++) {
for ( int k = 0; k < cols ; k++) {
for (int h = 0; h < list1.size(); h++) {
String b = list1.get(h);
b = table.getValueAt(i, k).toString();
}
}
}
}