具有线程抛出java.lang.ArrayIndexOutOfBoundsException的JTable
我想使用线程修改我的JTable,但有时我会获取java.lang.ArrayIndexOutOfBoundsException 这里是我的代码具有线程抛出java.lang.ArrayIndexOutOfBoundsException的JTable,java,multithreading,swing,Java,Multithreading,Swing,我想使用线程修改我的JTable,但有时我会获取java.lang.ArrayIndexOutOfBoundsException 这里是我的代码 //... Ini Declaration javax.swing.JTable theJfTable = new javax.swing.JTable(); theJfTable.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { }, new Stri
//... Ini Declaration
javax.swing.JTable theJfTable = new javax.swing.JTable();
theJfTable.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
"Freqs", "Real", "Imag", "Mod", "Angle"
}
));
//... End Declaration
我正在创建一个线程,因为这个过程需要很长时间!!!
我想避免我的程序被冻结,然后我会使用线程
Runnable fillData = new Runnable() {
public void run() {
double[] bins = ... // DoubleArrayWithSizeF;
double[] Real = ... // DoubleArrayWithSizeF;
double[] Imag = ... // DoubleArrayWithSizeF;
double[] Mod = ... // DoubleArrayWithSizeF;
double[] Arg = ... // DoubleArrayWithSizeF;
int iSizeF = bins.length;
((DefaultTableModel) theJfTable.getModel()).setRowCount(0);
for (int i = 0; i < iSizeF; i++) {
((DefaultTableModel) theJfTable.getModel()).addRow(new Object[]{ // Line 9208 Problem Here!!!!
String.format("%.2f", bins[i]),
String.format("%.2f", Real[i]),
String.format("%.2f", Imag[i]),
String.format("%.2f", Mod[i]),
String.format("%.2f", Arg[i])
});
}
}
};
new Thread(fillData).start();
我想避免这个错误。。。我想用一个尝试捕捉,但我的结果将是不安全的
PD:
使用SwingWorker不是唯一的答案…更简单的解决方案
Runnable fillData = new Runnable() {
public void run() {
double[] bins = ... // DoubleArrayWithSizeF;
double[] Real = ... // DoubleArrayWithSizeF;
double[] Imag = ... // DoubleArrayWithSizeF;
double[] Mod = ... // DoubleArrayWithSizeF;
double[] Arg = ... // DoubleArrayWithSizeF;
int iSizeF = bins.length;
Object[][] matrix = new Object[bins.length][5];
for (int row = 0; row < matrix.length; row++) {
matrix[row][0] = String.format("%.2f", bins[row]);
matrix[row][1] = String.format("%.2f", Real[row]));
matrix[row][2] = String.format("%.2f", Imag[row]));
matrix[row][3] = String.format("%.2f", Mod[row]));
matrix[row][4] = String.format("%.2f", Arg[row]);
}
String[] headers = {"Freqs", "Real", "Imag", "Mod", "Angle"};
final DefaultTableModel dtm = new DefaultTableModel(matrix,headers);
SwingUtilities.invokeLater(
new Runnable() {
@Override
public void run() {
theJfTable.setModel(dtm);
}
}
);
}
};
new Thread(fillData).start();
Runnable fillData=new Runnable(){
公开募捐{
double[]bin=…//DoubleArrayWithSizeF;
double[]Real=…//DoubleArrayWithSizeF;
double[]Imag=…//DoubleArrayWithSizeF;
double[]Mod=…//DoubleArrayWithSizeF;
double[]Arg=…//DoubleArrayWithSizeF;
int iSizeF=料仓长度;
对象[][]矩阵=新对象[bin.length][5];
对于(int row=0;row
我想用Try-Catch做什么,但结果不安全!!!是吗?同样在您的答案中,更新组件仍然是由外部线程而不是EDT完成的。首先,让另一个线程读取,然后查看“PD:用大量行填充JTable-使用SwingWorker不是唯一的答案…”以及您想要的答案是什么?在这种情况下,SwingWorker
什么不合适?它使用一个后台线程,允许您通过publish/process
安全地填充表格和更新UI,并将防止出现异常?
Runnable fillData = new Runnable() {
public void run() {
double[] bins = ... // DoubleArrayWithSizeF;
double[] Real = ... // DoubleArrayWithSizeF;
double[] Imag = ... // DoubleArrayWithSizeF;
double[] Mod = ... // DoubleArrayWithSizeF;
double[] Arg = ... // DoubleArrayWithSizeF;
int iSizeF = bins.length;
Object[][] matrix = new Object[bins.length][5];
for (int row = 0; row < matrix.length; row++) {
matrix[row][0] = String.format("%.2f", bins[row]);
matrix[row][1] = String.format("%.2f", Real[row]));
matrix[row][2] = String.format("%.2f", Imag[row]));
matrix[row][3] = String.format("%.2f", Mod[row]));
matrix[row][4] = String.format("%.2f", Arg[row]);
}
String[] headers = {"Freqs", "Real", "Imag", "Mod", "Angle"};
final DefaultTableModel dtm = new DefaultTableModel(matrix,headers);
SwingUtilities.invokeLater(
new Runnable() {
@Override
public void run() {
theJfTable.setModel(dtm);
}
}
);
}
};
new Thread(fillData).start();