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Oracle Java SE 8 Programmer II Sample Questions (Q78-Q83):

NEW QUESTION # 78
Given the code fragment:
List<String> empDetails = Arrays.asList("100, Robin, HR",
"200, Mary, AdminServices",
"101, Peter, HR");
empDetails.stream()
.filter(s-> s.contains("1"))
.sorted()
.forEach(System.out::println); //line n1
What is the result?

Answer: D


NEW QUESTION # 79
Given the code fragment:

Which code fragment, when inserted at line 9, enables the code to print true?

Answer: A

Explanation:
StringBuilder sb1 = new StringBuilder("Duke");
String str1 = sb1.toString();
String str2 = str1;
//String str2 = "Duke";
//String str2 = new String(str1);
System.out.println(str1 == str2);
}}


NEW QUESTION # 80
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?

Answer: C


NEW QUESTION # 81
Given the code fragment:
List<String> colors = Arrays.asList("red", "green", "yellow");
Predicate<String> test = n - > {
System.out.println("Searching...");
return n.contains("red");
};
colors.stream()
. filter(c -> c.length() > 3)
. allMatch(test);
What is the result?

Answer: A


NEW QUESTION # 82
Given the structure of the STUDENT table:
Student (id INTEGER, name VARCHAR)
Given:
public class Test {
static Connection newConnection =null;
public static Connection get DBConnection () throws SQLException {
try (Connection con = DriveManager.getConnection(URL, username, password)) {
newConnection = con;
}
return newConnection;
}
public static void main (String [] args) throws SQLException {
get DBConnection ();
Statement st = newConnection.createStatement();
st.executeUpdate("INSERT INTO student VALUES (102, 'Kelvin')");
}
}
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the URL, userName, and passWord exists.
The SQL query is valid.
What is the result?

Answer: D


NEW QUESTION # 83
......

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