Java FilterInputStream.mark(int readlimit)方法示例
FilterInputStream.FilterInputStream.mark(int readlimit)
方法具有以下语法。
public void mark(int readlimit)
示例
在下面的代码中展示了如何使用FilterInputStream.mark(int readlimit)
方法。
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
// => w w w .Y I ib AI .c O M
public class Main {
public static void main(String[] args) throws Exception {
// create input streams
InputStream is = new FileInputStream("C://test.txt");
FilterInputStream fis = new BufferedInputStream(is);
// reads and prints BufferedReader
System.out.println((char) fis.read());
System.out.println((char) fis.read());
// mark invoked at this position
fis.mark(0);
System.out.println("mark() invoked");
System.out.println((char) fis.read());
System.out.println((char) fis.read());
// reset() repositioned the stream to the mark
fis.reset();
System.out.println("reset() invoked");
System.out.println((char) fis.read());
System.out.println((char) fis.read());
}
}