例子
以下示例显示java.io.PushbackInputStream.markSupported()方法的用法。
package com.jc2182;
import java.io.*;
public class PushbackInputStreamDemo {
public static void main(String[] args) {
// declare a buffer and initialize its size:
byte[] arrByte = new byte[1024];
// create an array for our message
byte[] byteArray = new byte[]{'H', 'e', 'l', 'l', 'o'};
// create object of PushbackInputStream class for specified stream
InputStream is = new ByteArrayInputStream(byteArray);
PushbackInputStream pis = new PushbackInputStream(is);
// check if mark is supported
System.out.println("" + pis.markSupported());
try {
// read from the buffer one character at a time
for (int i = 0; i < byteArray.length; i++) {
// read a char into our array
arrByte[i] = (byte) pis.read();
// display the read byte
System.out.print((char) arrByte[i]);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
让我们编译并运行以上程序,这将产生以下结果-