Exact2Pass
Last Update 8 hours ago Total Questions : 208
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Given the code fragments:
interface CourseFilter extends Predicate < String > {
public default boolean test (String str) {
return str.contains (“Java”);
}
}
and
List < String > strs = Arrays.asList(“Java”, “Java EE”, “Embedded Java”);
Predicate < String > cf1 = s - > s.length() > 3;
Predicate cf2 = new CourseFilter() { //line n1
public boolean test (String s) {
return s.startsWith (“Java”);
}
};
long c = strs.stream()
.filter(cf1)
.filter(cf2//line n2
.count();
System.out.println(c);
What is the result?
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?
Given the code fragment:
Which code fragment, when inserted at line 7, enables printing 100?
Given the code fragments:
interface CourseFilter extends Predicate < String > {
public default boolean test (String str) {
return str.equals (“Java”);
}
}
and
List < String > strs = Arrays.asList(“Java”, “Java EE”, “Java ME”);
Predicate < String > cf1 = s - > s.length() > 3;
Predicate cf2 = new CourseFilter() { //line n1
public boolean test (String s) {
return s.contains (“Java”);
}
};
long c = strs.stream()
.filter(cf1)
.filter(cf2//line n2
.count();
System.out.println(c);
What is the result?
Which statement is true about the DriverManager class?
Given:
and the code fragment:
What is the result?
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 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?
Given:
Item table
• ID, INTEGER: PK
• DESCRIP, VARCHAR(100)
• PRICE, REAL
• QUANTITY < INTEGER
And given the code fragment:
9. try {
10.Connection conn = DriveManager.getConnection(dbURL, username, password);
11. String query = “Select * FROM Item WHERE ID = 110”;
12. Statement stmt = conn.createStatement();
13. ResultSet rs = stmt.executeQuery(query);
14.while(rs.next()) {
15.System.out.println(“ID:“ + rs.getInt(“Id”));
16.System.out.println(“Description:“ + rs.getString(“Descrip”));
17.System.out.println(“Price:“ + rs.getDouble(“Price”));
18. System.out.println(Quantity:“ + rs.getInt(“Quantity”));
19.}
20. } catch (SQLException se) {
21. System.out.println(“Error”);
22. }
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists.
The SQL query is valid.
What is the result?
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 ()) {
if (aFile.getName ().endsWith (“.class”))
aFile.delete ();
}
}
}
}
Assume that Projects contains subdirectories that contain .class files and is passed as an argument to the recDelete () method when it is invoked.
What is the result?
