Pass the Oracle Java SE 1z0-809 Questions and answers with ExamsMirror

Given the code fragment:

Path file = Paths.get (“courses.txt”);

// line n1

Assume the courses.txt is accessible.

Which code fragment can be inserted at line n1 to enable the code to print the content of the courses.txt file?

Given:

class CheckClass {

public static int checkValue (String s1, String s2) {

return s1 length() – s2.length();

}

}

and the code fragment:

String[] strArray = new String [] {“Tiger”, “Rat”, “Cat”, “Lion”}

//line n1

for (String s : strArray) {

System.out.print (s + “ “);

}

Which code fragment should be inserted at line n1 to enable the code to print Rat Cat Lion Tiger?

Given the code fragment:

You have been asked to define the ProductCode class. The definition of the ProductCode class must allow c1 instantiation to succeed and cause a compilation error on c2 instantiation.

Which definition of ProductCode meets the requirement?

Given:

Which two interfaces can you use to create lambda expressions? (Choose two.)

Given:

Which is refactored code with functional interfaces?

Given the code fragment:

What is the result?

Given the code fragment:

Path path1 = Paths.get(“/app/./sys/”);

Path res1 = path1.resolve(“log”);

Path path2 = Paths.get(“/server/exe/”);

Path res1 = path1.resolve(“/readme/”);

System.out.println(res1);

System.out.println(res2);

What is the result?

Given the code fragment:

Which code fragment, when inserted at line n1, enables the code to print /First.txt?

Given records from the Player table:

and given the code fragment:

try {

Connection conn = DriverManager.getConnection(URL, username, password);

Statement st= conn.createStatement(

ResultSet.TYPE_SCROLL_SENSITIVE,

ResultSet.CONCUR_UPDATABLE);

st.execute (“SELECT * FROM Player”);

st.setMaxRows(2);

ResultSet rs = st.getResultSet();

rs.absolute(3);

while (rs.next ()) {

System.out.println(rs.getInt(1) + “ “ + rs.getString(2));

}

} catch (SQLException ex) {

System.out.print(“SQLException is thrown.”);

}

Assume that:

The required database driver is configured in the classpath.

The appropriate database is accessible with URL, username, and password.

The SQL query is valid.

What is the result?

Given the code fragment:

List nums = Arrays.asList (10, 20, 8):

System.out.println (

//line n1

);

Which code fragment must be inserted at line n1 to enable the code to print the maximum number in the nums list?