Given:

Which would cause s to be AQCD?

• A.s.replace(s.indexOf("B"), s.indexOf("B"), "Q");
• B.s.replace(s.indexOf("B"), s.indexOf("C"), "Q");
• C.s.replace(s.indexOf("A"), s.indexOf("B"), "Q");
• D.s.replace(s.indexOf("A"), s.indexOf("C"), "Q");

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Given:

Which two methods modify field values? (Choose two.)

• A.setCCount
• B.setACount
• C.setGCount
• D.setTCount
• E.setAllCounts

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Given:

and

Which two method definitions at line n1 in the Bar class compile? (Choose two.)

• A.public List<Number> foo(Set<String> m) {...}
• B.public ArrayList<Integer> foo(Set<String> m) {...}
• C.public List<Object> foo(Set<CharSequence> m) {...}
• D.public ArrayList<Number> foo(Set<CharSequence> m) {...}
• E.public List<Integer> foo(TreeSet<String> m) {...}
• F.public List<Integer> foo(Set<CharSequence> m) {...}

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Given the code fragment:

You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?

• A.BasicFileAttributes attributes = Files isDirectory (path);
• B.BasicFileAttributes attributes = Files.readAttributes(path, BasicFileAttributes.class
• C.BasicFileAttributes attributes = Files, readAttributes (path, FileAttributes, class);
• D.BasicFileAttributes attributes =Files.getAttribute (path, ''insdirectory'');

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Given:
Automobile.java

Car.java

What must you do so that the code prints 4?

• A.Remove the parameter from wheels method in line 3.
• B.Add @Override annotation in line 2.
• C.Replace the code in line 2 with Car ob = new Car();
• D.Remove abstract keyword in line 1.

Correct Answer: B

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