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Java's ByteBuffer and FileChannel

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Questions and Answers

Which method is used to allocate a ByteBuffer with a capacity of 1024?

ByteBuffer.allocate(1024) (correct)

ByteBuffer.allocateDirect(512)

ByteBuffer.allocate(512)

ByteBuffer.allocateDirect(1024)

Which method is used to write the contents of a ByteBuffer to a FileChannel?

byteBuffer.get(byteBuffer)

fileChannel.read(byteBuffer)

fileChannel.write(byteBuffer) (correct)

byteBuffer.put(byteBuffer)

Which method is used to convert a ByteBuffer to an IntBuffer?

byteBuffer.asIntBuffer() (correct)

byteBuffer.asFloatBuffer()

byteBuffer.asDoubleBuffer()

byteBuffer.asLongBuffer()

What is the purpose of calling the method buffer.flip() before reading from a ByteBuffer?

To switch the buffer from write mode to read mode Signup and view all the answers

What is the purpose of using ByteBuffer[] to read data from a channel?

To read data into multiple buffers at once Signup and view all the answers

Which method is used to allocate a ByteBuffer with a capacity of 1024?

ByteBuffer.allocate(1024) Signup and view all the answers

What is the purpose of calling the method buffer.flip() after writing to a ByteBuffer?

To prepare the buffer for reading Signup and view all the answers

Which method is used to read the contents of a ByteBuffer into an IntBuffer?

buffer.asIntBuffer() Signup and view all the answers

What is the purpose of using ByteBuffer[] to read data from a channel?

To separate different parts of a message Signup and view all the answers

What is the purpose of calling the method byteBuffer.rewind() before reading from a ByteBuffer?

To reset the position of the ByteBuffer to zero Signup and view all the answers

Java's ByteBuffer and FileChannel

Choose a study mode

Podcast

Questions and Answers

Which method is used to allocate a ByteBuffer with a capacity of 1024?

Which method is used to write the contents of a ByteBuffer to a FileChannel?

Which method is used to convert a ByteBuffer to an IntBuffer?

What is the purpose of calling the method buffer.flip() before reading from a ByteBuffer?

What is the purpose of using ByteBuffer[] to read data from a channel?

Which method is used to allocate a ByteBuffer with a capacity of 1024?

What is the purpose of calling the method buffer.flip() after writing to a ByteBuffer?

Which method is used to read the contents of a ByteBuffer into an IntBuffer?

What is the purpose of using ByteBuffer[] to read data from a channel?

What is the purpose of calling the method byteBuffer.rewind() before reading from a ByteBuffer?

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