BufferedInputStream skipNBytes(long) in Java

skipNBytes(long): This method is available in the java.io.BufferedInputStream class of Java.

Syntax:

void java.io.InputStream.skipNBytes(long n) throws IOException

This method takes one argument. This method skips over and discards exactly n bytes of data from this input stream.

Note: If n is zero, then no bytes are skipped.If n is negative, then no bytes are skipped.

Parameters: One parameter is required for this method.

n: the number of bytes to be skipped.

Throws:

1. EOFException - if end of the stream is encountered before the stream can be positioned n bytes beyond its position when this method was invoked.

2. IOException - if the stream cannot be positioned properly or if an I/O error occurs.

Approach 1: When no exception

Java

Output:

java.io.BufferedInputStream@182decdb

Approach 2: EOFException 

Java

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;

public class BufferedInputStreamskipNBytes {
    public static void main(String[] args) throws IOException {

        InputStream inputStream = InputStream.nullInputStream();
        BufferedInputStream bufferedInputStream = 
           new BufferedInputStream(inputStream);

        long n = 2;

        bufferedInputStream.skipNBytes(n);

        System.out.println(bufferedInputStream);
    }
}

Output:

Exception in thread "main" java.io.EOFException
	at java.base/java.io.InputStream.skipNBytes(InputStream.java:605)
	

Approach 3: IOException 

Java

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;

public class BufferedInputStreamskipNBytes {
    public static void main(String[] args) throws IOException {

        InputStream inputStream = InputStream.nullInputStream();
        BufferedInputStream bufferedInputStream = 
                 new BufferedInputStream(inputStream);

        long n = 2;

        bufferedInputStream.close();
        bufferedInputStream.skipNBytes(n);

        System.out.println(bufferedInputStream);
    }
}

Output:

Exception in thread "main" java.io.IOException: Stream closed
	at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:168)
	at java.base/java.io.BufferedInputStream.skip(BufferedInputStream.java:366)
	at java.base/java.io.InputStream.skipNBytes(InputStream.java:595)