FileInputStream (Java SE 25 & JDK 25)
- All Implemented Interfaces:
Closeable, AutoCloseable
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Constructor Summary
Constructors
Creates a
FileInputStreamto read from an existing file represented by theFileobjectfile.Creates a
FileInputStreamby using the file descriptorfdObj, which represents an existing connection to an actual file in the file system.Creates a
FileInputStreamto read from an existing file named by the path namename. -
Method Summary
intReturns an estimate of the number of remaining bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
voidclose()Closes this file input stream and releases any system resources associated with the stream.
Returns the unique
FileChannelobject associated with this file input stream.getFD()Returns the
FileDescriptorobject that represents the connection to the actual file in the file system being used by thisFileInputStream.intread()Reads a byte of data from this input stream.
intread(byte[] b) Reads up to
b.lengthbytes of data from this input stream into an array of bytes.intread(byte[] b, int off, int len) Reads up to
lenbytes of data from this input stream into an array of bytes.byte[]readNBytes(int len) Reads up to a specified number of bytes from the input stream.
longskip(long n) Skips over and discards
nbytes of data from the input stream.
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Constructor Details
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FileInputStream
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FileInputStream
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FileInputStream
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Method Details
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read
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read
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read
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readNBytes
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skip
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available
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close
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getFD
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getChannel
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