Assume We Have a RandomAccessFile Object, File, Which Stores a Set

question 6

Multiple Choice

Assume we have a RandomAccessFile object, file, which stores a set of records of class MyData. The size of each record is MyData.RECORD_SIZE. Assume MyData has read and write methods, both of which take a RandomAccessFile as an argument. Method write writes the object at the current location. Method read reads the record from current location of the file into the object. If we are currently at the beginning of the 25^th record, which code correctly modifies the 25^th record by changing its color to Color.yellow through the setColor method?

• A) myData.read(file);
• MyData.setColor(Color.yellow);
• MyData.write(file);
• B) myData.read(file);
• MyData.setColor(Color.yellow);
• File.seek(file.getFilePointer());
• MyData.write(file);
• C) myData.read(file);
• MyData.setColor(Color.yellow);
• File.seek(file.getFilePointer() + MyData.RECORD_SIZE);
• MyData.write(file);
• D) long loc = file.getFilePointer();
• MyData.read(file);
• MyData.setColor(Color.yellow);
• File.seek(loc);
• MyData.write(file);

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Definitions:

Kraepelin

Refers to Emil Kraepelin, a German psychiatrist known for his work in classifying mental disorders.

Clinical Syndromes

A set of medical signs and symptoms that are correlated with each other and often associated with a particular disease or disorder.

ICD

International Classification of Diseases, a global health information system for categorizing diseases and health conditions.

DSM

The Diagnostic and Statistical Manual of Mental Disorders; a handbook used by healthcare professionals as the authoritative guide to the diagnosis of mental disorders.