public abstract class InputStream extends Object
Constructor and Description |
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InputStream() |
Modifier and Type | Method and Description |
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int |
available()
Returns the number of bytes that can be read (or skipped over) from this input stream without blocking by the next caller of a method for this input stream.
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void |
close()
Closes this input stream and releases any system resources associated with the stream.
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void |
mark(int readlimit)
Marks the current position in this input stream.
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boolean |
markSupported()
Tests if this input stream supports the mark and reset methods.
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abstract int |
read()
Reads the next byte of data from the input stream.
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int |
read(byte[] b)
Reads some number of bytes from the input stream and stores them into the buffer array b.
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int |
read(byte[] b,
int off,
int len)
Reads up to len bytes of data from the input stream into an array of bytes.
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void |
reset()
Repositions this stream to the position at the time the mark method was last called on this input stream.
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long |
skip(long n)
Skips over and discards n bytes of data from this input stream.
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public int available() throws IOException
IOException
public void close() throws IOException
IOException
public void mark(int readlimit)
public boolean markSupported()
public abstract int read() throws IOException
IOException
public int read(byte[] b) throws IOException
IOException
public int read(byte[] b, int off, int len) throws IOException
IOException
public void reset() throws IOException
IOException
public long skip(long n) throws IOException
IOException