Java:导入保存的ArrayList并显示在文本字段中
有麻烦了 我有一个ArrayList,我已经将它输出到一个文件中,我希望能够打开这个文件并在jTextField中显示内容Java:导入保存的ArrayList并显示在文本字段中,java,import,arraylist,jtextfield,Java,Import,Arraylist,Jtextfield,有麻烦了 我有一个ArrayList,我已经将它输出到一个文件中,我希望能够打开这个文件并在jTextField中显示内容 private void btnSubmitActionPerformed(java.awt.event.ActionEvent evt) { computer= new Computer(); computer.setComputerType(cbType.getSelecte
private void btnSubmitActionPerformed(java.awt.event.ActionEvent evt) {
computer= new Computer();
computer.setComputerType(cbType.getSelectedItem().toString() +"\n");
computer.setWeight(txtWeight.getText() +"\n");
computer.setBatteryLife(txtBattery.getText() +"\n");
computer.setScreenSize(txtScreenSize.getText() +"\n");
computer.setRamSize(txtRAM.getText() +"\n");
computer.setOS(cbOS.getSelectedItem().toString() +"\n");
computer.setManufacturerName(txtManufacturer.getText() +"\n");
computer.setProcessorModel(txtCPU.getText() +"\n");
computer.setCpuCoreType(txtCPUCore.getText() +"\n");
//Store computer in ArrayList
myComputerList.add(computer);
System.out.print("Size of array " + myComputerList.size() + "\n");
System.out.print("\n");
}
private void btnSaveActionPerformed(java.awt.event.ActionEvent evt) {
try {
ObjectOutputStream outputStream = new ObjectOutputStream(
new FileOutputStream("ArrayFile.bin"));
outputStream.writeObject(myComputerList);
outputStream.close();
System.out.println("Array output file" + "\n");
}
catch(IOException err)
{
System.out.println("Problem with file output");
}
System.out.println("Computer written to the file computers.bin");
}
读入并设置字段的文本?您有什么具体问题?您的计算机对象可序列化吗?您可以设置计算机对象,这样我们就可以看到它是如何设置的。