Java FileInputStream.read(byte[] b)方法示例
FileInputStream
的FileInputStream.read(byte[] b)
方法具有以下语法。
public int read(byte[] b) throws IOException
示例
在下面的代码显示如何使用FileInputStream.read(byte[] b)
方法。
import java.io.FileInputStream;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException {
byte[] bs = new byte[4];
FileInputStream fis = new FileInputStream("C://test.txt");
// read bytes to the buffer
int i = fis.read(bs); // At: wW w . yi i b AI.C O m
System.out.println("Number of bytes read: " + i);
// for each byte in buffer
for (byte b : bs) {
// converts byte to character
char c = (char) b;
System.out.println(c);
}
}
}