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

question 50

Multiple Choice

Assume we have a RandomAccessFile object, file, that 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 1^st record, which code correctly modifies the 2^nd record by changing its color to Color.red through the setColor method?

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

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Definitions:

American Rule

The American Rule is a legal principle stating that each party in a lawsuit is responsible for paying their own attorney's fees, unless specific authority granted by statute or contract allows the prevailing party to recover those fees from the loser.

Delegation of Duties

The process of assigning specific responsibilities or tasks to another individual, often within an organizational setting.

Promisee

In a third-party beneficiary contract, the party to the contract who owes something to the promisor in exchange for the promise made to the third-party beneficiary.

Third-Party Beneficiary

A recipient of contractual benefits who is not one of the contracting parties; created when two parties enter into a contract with the intended purpose of benefiting a third party.