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1.
Which two actions can be used in registering a JDBC 3.0 driver?
2.
Given the code fragment:
What change should you make to apply good coding practices to this fragment?
3.
Which two statements are true about RowSet subinterfaces?
4.
Given:
From what threading problem does the program suffer?
5.
Given the interface:
Public interface Idgenerator {
int getNextId();
}
Which class implements IdGenerator in a thread-safe manner, so that no threads can get a duplicate id value current access?
6.
Given the code fragment:
What is the result?
7.
Given:
ConcurrentMap PartList = new ConcurrentMap<>();
Which fragment puts a key/value pair in partList without the responsibility of overwriting an existing key?
8.
Give:
What is the likely result?
9.
Given:
import java.util.concurrent.atomic.AtomicInteger;
public class AtomicCounter {
private AtomicInteger c = new AtomicInteger(0);
public void increment() {
// insert code here
}
}
Which line of code, inserted inside the increment () method, will increment the value of c?
10.
Given the following incorrect program:
Which two changes make the program work correctly?