Examples of java.io.RandomAccessFile.readFully()

java.io.RandomAccessFile.readFully()
Reads bytes from this stream into the byte array buffer. This method will block until buffer.length number of bytes have been read. @param buffer the buffer to read bytes into @throws IOException If a problem occurs reading from this DataInputStream. @see DataOutput#write(byte[]) @see DataOutput#write(byte[],int,int)

        // Test for method void java.io.RandomAccessFile.readFully(byte [])
        byte[] buf = new byte[10];
        RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
        raf.writeBytes("HelloWorld");
        raf.seek(0);
        raf.readFully(buf);
        assertEquals("Incorrect bytes read/written", "HelloWorld", new String(
                buf, 0, 10));
        raf.close();
    }

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        // int)
        byte[] buf = new byte[10];
        RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
        raf.writeBytes("HelloWorld");
        raf.seek(0);
        raf.readFully(buf, 0, buf.length);
        assertEquals("Incorrect bytes read/written", "HelloWorld", new String(
                buf, 0, 10));
        try {
            raf.readFully(buf, 0, buf.length);
            fail("Reading past end of buffer did not throw EOFException");

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        raf.seek(0);
        raf.readFully(buf, 0, buf.length);
        assertEquals("Incorrect bytes read/written", "HelloWorld", new String(
                buf, 0, 10));
        try {
            raf.readFully(buf, 0, buf.length);
            fail("Reading past end of buffer did not throw EOFException");
        } catch (EOFException e) {}
    }


    /**

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        byte[] buf = new byte[5];
        RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
        raf.writeBytes("HelloWorld");
        raf.seek(0);
        raf.skipBytes(5);
        raf.readFully(buf);
        assertEquals("Failed to skip bytes", "World", new String(buf, 0, 5));
        raf.close();
    }


    /**

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            for (int i = 0; i < lastIndex; i++) {


                file.seek(recOffset[i]);
                len = recOffset[i+1] - recOffset[i];
                bytes = new byte[len];
                file.readFully(bytes);
    recArray[i] = new Record(bytes, recAttrs[i]);
      }
      
            // last record
            file.seek(recOffset[lastIndex]);

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            // last record
            file.seek(recOffset[lastIndex]);
            len = (int) file.length() - recOffset[lastIndex];
            bytes = new byte[len];
            file.readFully(bytes);
            recArray[lastIndex] = new Record(bytes, recAttrs[lastIndex]);
     
        }


        file.close();

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            for (int i = 0; i < lastIndex; i++) {


                file.seek(recOffset[i]);
                len = recOffset[i+1] - recOffset[i];
                bytes = new byte[len];
                file.readFully(bytes);
                recArray[i] = new Record(bytes);
            }


            // last record
            file.seek(recOffset[lastIndex]);

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            // last record
            file.seek(recOffset[lastIndex]);
            len = (int) file.length() - recOffset[lastIndex];
            bytes = new byte[len];
            file.readFully(bytes);
            recArray[lastIndex] = new Record(bytes);
        }


        file.close();

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            for (int i = 0; i < lastIndex; i++) {


                file.seek(recOffset[i]);
                len = recOffset[i+1] - recOffset[i];
                bytes = new byte[len];
                file.readFully(bytes);
                recArray[i] = new Record(bytes);
            }


            // last record
            file.seek(recOffset[lastIndex]);

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            // last record
            file.seek(recOffset[lastIndex]);
            len = (int) file.length() - recOffset[lastIndex];
            bytes = new byte[len];
            file.readFully(bytes);
            recArray[lastIndex] = new Record(bytes);
        }


        file.close();

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