Java_I/O輸入輸出_實現讀取文件時出現一個表示讀取進度的進度條。可以使用java.swing包提供的輸入流類ProgressMonitorInputStream

import java.io.*;

import javax.swing.*;

public class Student {
public static void main(String[] temp) {
byte b[] = new byte[2];
try{
FileInputStream fis = new FileInputStream("word.txt");
ProgressMonitorInputStream in =
new ProgressMonitorInputStream(null,"讀取文件",fis);
while(in.read(b)!=-1){
String s = new String(b);
System.out.print(s);
Thread.sleep(10);
}
}catch (Exception e) {
e.printStackTrace();
}
}
}

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