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Oracle Java SE 8 Programmer II Sample Questions (Q204-Q209):

NEW QUESTION # 204
Given the code fragment:
public static void main (String[] args) throws IOException {
BufferedReader brCopy = null;
try (BufferedReader br = new BufferedReader (new FileReader("employee.txt"))) { // line n1 br.lines().forEach(c -> System.out.println(c)); brCopy = br;//line n2
}
brCopy.ready(); //line n3;
}
Assume that the ready method of the BufferedReader, when called on a closed BufferedReader, throws an exception, and employee.txt is accessible and contains valid text.
What is the result?

A. A compilation error occurs at line n1.
B. A compilation error occurs at line n3.
C. A compilation error occurs at line n2.
D. The code prints the content of the employee.txt file and throws an exception at line n3.

Answer: D

NEW QUESTION # 205
Given:

What is the result?

A. true false
B. false true
C. true true
D. false false
E. Compilation fails.

Answer: B

NEW QUESTION # 206
Which statement is true about the single abstract method of the java.util.function.Function interface?

A. It accepts an argument and produces a result of any data type.
B. It accepts one argument and returns boolean.
C. It accepts one argument and always produces a result of the same type as the argument.
D. It accepts one argument and returns void.

Answer: C

NEW QUESTION # 207
Given the code fragment:
public void recDelete (String dirName) throws IOException {
File [ ] listOfFiles = new File (dirName) .listFiles();
if (listOfFiles ! = null && listOfFiles.length >0) {
for (File aFile : listOfFiles) {
if (aFile.isDirectory ()) {
recDelete (aFile.getAbsolutePath ());
} else {
if (aFile.getName ().endsWith (".class"))
aFile.delete ();
}
}
}
}
Assume that Projectscontains subdirectories that contain .classfiles and is passed as an argument to the recDelete ()method when it is invoked.
What is the result?

A. The method deletes all the .classfiles in the Projectsdirectory and its subdirectories.
B. The method throws an IOException.
C. The method executes and does not make any changes to the Projectsdirectory.
D. The method deletes the .classfiles of the Projectsdirectory only.

Answer: A

NEW QUESTION # 208
In 2015, daylight saving time in New York, USA, begins on March 8th at 2:00 AM. As a result, 2:00 AM
becomes 3:00 AM.
Given the code fragment:

Which is the result?

A. 4:00 - difference: 3
B. 2:00 - difference: 1
C. 3:00 - difference: 2
D. 4:00 - difference: 2

Answer: D

NEW QUESTION # 209
......

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