單項(xiàng)選擇題

Which constructs a DataOutputStream？（）

A. New dataInputStream（“in.txt”）；
B. New dataInputStream（new file（“in.txt”））；
C. New dataInputStream（new writer（“in.txt”））；
D. New dataInputStream（new FileWriter（“in.txt”））；
E. New dataInputStream（new InputStream（“in.txt”））；
F. New dataInputStream（new FileInputStream（“in.txt”））；

你可能感興趣的試題

單項(xiàng)選擇題

public class Foo implements Runnable （
public void run （Thread t） {
system.out.printIn（“Running.”）；
}
public static void main （String args） {
new thread （new Foo（））.start（）；
}
）
What is the result？（）

A. An exception is thrown.
B. The program exists without printing anything.
C. An error at line 1 causes compilation to fail.
D. An error at line 6 causes the compilation to fail.
E. “Running” is printed and the program exits.

多項(xiàng)選擇題

Which two can directly cause a thread to stop executing？（）

A. Exiting from a synchronized block.
B. Calling the wait method on an object.
C. Calling the notify method on an object.
D. Calling the notifyAll method on an object.
E. Calling the setPriority method on a thread object.

Which constructs a DataOutputStream？（）

你可能感興趣的試題

public class Foo implements Runnable （ public void run （Thread t） { system.out.printIn（“Running.”）； } public static void main （String args） { new thread （new Foo（））.start（）； } ） What is the result？（）

Which two can directly cause a thread to stop executing？（）

public class Foo implements Runnable （
public void run （Thread t） {
system.out.printIn（“Running.”）；
}
public static void main （String args） {
new thread （new Foo（））.start（）；
}
）
What is the result？（）

Which two can directly cause a thread to stop executing？（）