A. Member data have no access modifiers.
B. Member data can be modified directly.
C. The access modifier for methods is protected.
D. The access modifier to member data is private.
E. Methods provide for access and modification of data.
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A. Int foo = (int) Math.max(bar);
B. Int foo = (int) Math.min(bar);
C. Int foo = (int) Math.abs(bar);
D. Int foo = (int) Math.ceil(bar);
E. Int foo = (int) Math.floor(bar);
F. Int foo = (int) Math.round(bar);
public class Test {
public static void main (String args) {
string foo = “blue”;
string bar = foo;
foo = “green”;
System.out.printIn(bar);
}
}
What is the result?()
A. An exception is thrown.
B. The code will not compile.
C. The program prints “null”
D. The program prints “blue”
E. The program prints “green”
A. Java.io.InputStream.
B. Java.io.EncodedReader.
C. Java.io.InputStreamReader.
D. Java.io.InputStreamWriter.
E. Java.io.BufferedInputStream.
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”));
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.
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.
public class ForBar {
public static void main(String args) {
int i = 0, j = 5;
tp: for (;;) {
i ++;
for(;;)
if(i > --j) break tp;
}
system.out.printIn(“i = ” + i + “, j = “+ j);
}
}
What is the result? ()
A. The program runs and prints “i=1, j=0”
B. The program runs and prints “i=1, j=4”
C. The program runs and prints “i=3, j=4”
D. The program runs and prints “i=3, j=0”
E. An error at line 4 causes compilation to fail.
F. An error at line 7 causes compilation to fail.
A. Error
B. Event
C. Object
D. Exception
E. Throwable
F. RuntimeException
public class SwitchTest {
public static void main (String args) {
System.out.PrintIn(“value =” +switchIt(4));
}
public static int switchIt(int x) {
int j = 1;
switch (x) {
case 1: j++;
case 2: j++;
case 3: j++;
case 4: j++;
case 5: j++;
default:j++;
}
return j + x;
}
}
What is the output from line 3? ()
A. Value = 3
B. Value = 4
C. Value = 5
D. Value = 6
E. Value = 7
F. Value = 8
public class ExceptionTest {
class TestException extends Exception {}
public void runTest () throws TestException {}
public void test () /* Point X*/ {
runTest ();
}
}
At point X on line 4, which code can be added to make the code compile?()
A. Throws Exception.
B. Catch (Exception e).
C. Throws RuntimeException.
D. Catch (TestException e).
E. No code is necessary.
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