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我試過這段代碼,但jtextfield變空了,任何幫助都將不勝感激。我認爲問題來了,而不是手動指定文本文件的位置,我使用jfilechooser,但我不確定。請有人幫助我。如何將arraylist設置爲數組,將它們拆分並在jtextfield中設置拆分文本
try {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException ex) {
Logger.getLogger(doc.class.getName()).log(Level.SEVERE,null, ex);
} catch (InstantiationException ex) {
Logger.getLogger(doc.class.getName()).log(Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
Logger.getLogger(doc.class.getName()).log(Level.SEVERE, null, ex);
} catch (UnsupportedLookAndFeelException ex) {
Logger.getLogger(doc.class.getName()).log(Level.SEVERE, null, ex);
}
JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(null);
File f = chooser.getSelectedFile();
String filename = f.getAbsolutePath();
try
{
FileReader reader = new FileReader (filename);
BufferedReader br = new BufferedReader(reader);
jTextArea1.read(br, null);
br.close();
jTextArea1.requestFocus();
}catch(Exception e){
}
in = new BufferedReader(new FileReader(filename));
String str;
ArrayList<String> list = new ArrayList<>();
while((str = in.readLine()) != null){
list.add(str);
}
String[] listArray =list.toArray(new String[list.size()]);
for(int b=0; b<listArray.length;b++){
String[] Arra= str.split(" ")
serial_no.setText(Arra.get(0));
adm_no.setText(Arra.get(2));
我注意到,這樣做,而不是時間=新的BufferedReader(新的FileReader(文件名)) ;但仍然不起作用 – narcos
是否有使用BufferedReader的原因,因爲FileInputStream可以直接使用File?FileInputStream fis = new FileInputStream(f);' –
我不知道如何讀取文本文件一行一行地使用FileInputStream – narcos