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我很难理解这个java程序是如何工作的。我知道我们有文件的I/O库。这里是代码:有人可以通过这个Java代码走过我吗?
import java.io.*;
public class SimpleRandomAccessFile {
public static void main(String[] args) throws IOException {
RandomAccessFile inout = new RandomAccessFile("inout.dat", "rw");
inout.setLength(0);
for (int i = 0; i < 200; i++)
inout.writeInt(i);
System.out.println("Current file length is " + inout.length());
inout.seek(0);
System.out.println("The first number is " + inout.readInt());
inout.seek(2*4);
System.out.println("The third number is " + inout.readInt());
inout.seek(8*4);
System.out.println("The ninth number is " + inout.readInt());
inout.writeInt(200);
inout.seek(inout.length());
inout.writeInt(1000);
System.out.println("The new length is " + inout.length());
inout.seek(9 * 4);
System.out.println("The tenth number is " + inout.readInt());
inout.close();
}
}
任何帮助或反馈将是伟大的!
SO不适合这样的问题 – 2014-12-07 18:55:30
这个问题ID适合SO网络的代码审查。 – Magnilex 2014-12-07 18:57:05
此问题对目前形式的其他人无效。请选择您想要回答的具体问题,并提供一个显示您的问题的示例。 – Keppil 2014-12-07 18:58:36