我从临时文件中读取并将其写入永久文件,但某处字符串丢失了所有空格
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
String b, filename;
b = null;
filename = (textfieldb.getText());
try {
// TODO add your handling code here:
dispose();
Scanner scan;
scan = new Scanner(new File("TempSave.txt"));
StringBuilder sb = new StringBuilder();
while (scan.hasNext()) {
sb.append(scan.next());
}
b = sb.toString();
String c;
c = b;
FileWriter fw = null;
try {
fw = new FileWriter(filename + ".txt");
} catch (IOException ex) {
Logger.getLogger(hiudsjh.class.getName()).log(Level.SEVERE, null, ex);
}
PrintWriter pw = new PrintWriter(fw);
pw.print(c);
pw.close();
System.out.println(c);
} catch (FileNotFoundException ex) {
Logger.getLogger(NewJFrame.class.getName()).log(Level.SEVERE, null, ex);
}
dispose();
hiudsjh x = new hiudsjh();
x.setVisible(true);
System.out.println(b);
}没有错误消息只是输出应该是剩余空格的文件
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