1
我想要讀取數組中的元素並將讀取的進度顯示爲並行過程讀取。如何在IO操作期間顯示進度
我有兩個INTERAL類：
public class NumbersCounter {
int totalCountOfLines;
int currentCountOfLines = 1;
public NumbersCounter() throws FileNotFoundException, IOException {
new Read();
new Progress();
}
public static void main(String[] args) {
try {
new NumbersCounter();
} catch (FileNotFoundException ex) {
Logger.getLogger(NumbersCounter.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(NumbersCounter.class.getName()).log(Level.SEVERE, null, ex);
}
}
class Progress extends Thread {
public Progress() {
start();
}
@Override
public void run() {
synchronized(new Object()) {
while (currentCountOfLines <= totalCountOfLines) {
System.out.println(currentCountOfLines/totalCountOfLines * 100 + "%");
Thread.yield();
}
}
}}
class Read extends Thread {
private FileHandler fh = new FileHandler("ololo.txt");
private String[] lines;
public Read() throws FileNotFoundException, IOException {
this.lines = fh.readFromFile();
start();
}
@Override
public void run() {
totalCountOfLines = this.lines.length;
if (totalCountOfLines > 0) {
synchronized(new Object()) {
for (String line : lines) {
currentCountOfLines++;
Thread.yield();
}
}
} else {
totalCountOfLines = 0;
}
}
}
}
當執行讀取線程的第一步，我需要給執行到進度線程，然後爲閱讀，然後進展。