多项选择题

Given:
35.String #name = "Jane Doe";
36.int $age = 24;
37.Double _height = 123.5;
38.double ~temp = 37.5;
Which two statements are true?()

A.Line 35 will not compile.
B.Line 36 will not compile.
C.Line 37 will not compile.
D.Line 38 will not compile.


您可能感兴趣的试卷

你可能感兴趣的试题

1.单项选择题

Given:

What is the result?()

A.An exception is thrown at runtime.
B.Compilation fails because of an error in line 7.
C.Compilation fails because of an error in line 4.
D.Compilation succeeds and no runtime errors with class A occur.

2.单项选择题

Given:

What is the result?()

A.13
B.134
C.1234
D.2134

3.多项选择题

Given:

Which two methods, inserted independently at line 17, correctly complete the Sales class?()

A.double getSalesAmount() { return 1230.45; }
B.public double getSalesAmount() { return 1230.45; }
C.private double getSalesAmount() { return 1230.45; }
D.protected double getSalesAmount() { return 1230.45; }

4.多项选择题

Given:

Which three methods, inserted individually at line 14, will correctly complete class Two?()

A.int foo() { /* more code here */ }
B.void foo() { /* more code here */ }
C.public void foo() { /* more code here */ }
D.private void foo() { /* more code here */ }
E.protected void foo() { /* more code here */ }

5.单项选择题

Given:

What is the result?()

A.Compilation fails.
B.An exception is thrown at runtime.
C.The code executes normally and prints "bar".
D.The code executes normally, but nothing prints.

6.单项选择题

Given:

What is the result?()

A.Cat
B.Dog
C.Compilation fails.
D.The code runs with no output.
E.An exception is thrown at runtime.

7.单项选择题Given that t1 is a reference to a live thread, which is true?()

A.The Thread.sleep() method can take t1 as an argument.
B.The Object.notify() method can take t1 as an argument.
C.The Thread.yield() method can take t1 as an argument.
D.The Thread.setPriority() method can take t1 as an argument.
E.The Object.notify() method arbitrarily chooses which thread to notify.

8.多项选择题

Given:

Which two changes, taken together, would guarantee the output: 1, 2, 3, 4, 5, ?()

A.move the line 12 print statement into the foo() method
B.change line 7 to public synchronized void go() {
C.change the variable declaration on line 2 to private volatile int x;
D.wrap the code inside the foo() method with a synchronized( this ) block

9.多项选择题Which three will compile and run without exception?()

A.private synchronized Object o;
B.void go() {synchronized() { /* code here */ }
C.public synchronized void go() { /* code here */ }
D.private synchronized(this) void go() { /* code here */ }
E.void go() {synchronized(Object.class) { /* code here */ }
F.void go() {Object o = new Object();synchronized(o) { /* code here */ }

10.单项选择题

Given:

What can be a result?()

A.Compilation fails.
B.An exception is thrown at runtime.
C.The code executes and prints "StartedComplete".
D.The code executes and prints "StartedComplete0123".
E.The code executes and prints "Started0123Complete".