최신Oracle Java SE 8 Programmer II - 1z1-809무료샘플문제
문제1
Given:
What is the result?
Given:
What is the result?
정답: D
문제2
Given:
class Vehicle {
int vno;
String name;
public Vehicle (int vno, String name) {
this.vno = vno,;
this.name = name;
}
public String toString () {
return vno + ":" + name;
}
}
and this code fragment:
Set<Vehicle> vehicles = new TreeSet <> ();
vehicles.add(new Vehicle (10123, "Ford"));
vehicles.add(new Vehicle (10124, "BMW"));
System.out.println(vehicles);
What is the result?
Given:
class Vehicle {
int vno;
String name;
public Vehicle (int vno, String name) {
this.vno = vno,;
this.name = name;
}
public String toString () {
return vno + ":" + name;
}
}
and this code fragment:
Set<Vehicle> vehicles = new TreeSet <> ();
vehicles.add(new Vehicle (10123, "Ford"));
vehicles.add(new Vehicle (10124, "BMW"));
System.out.println(vehicles);
What is the result?
정답: C
문제3
Given the content of the employee.txt file:
Every worker is a master.
Given that the employee.txt file is accessible and the file allemp.txt does NOT exist, and the code fragment:
What is the result?
Given the content of the employee.txt file:
Every worker is a master.
Given that the employee.txt file is accessible and the file allemp.txt does NOT exist, and the code fragment:
What is the result?
정답: C
문제4
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 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?
정답: B
문제5
Given the definition of the Vehicle class:
Class Vehhicle {
int distance;//line n1
Vehicle (int x) {
this distance = x;
}
public void increSpeed(int time) {//line n2
int timeTravel = time;//line n3
class Car {
int value = 0;
public void speed () {
value = distance /timeTravel;
System.out.println ("Velocity with new speed"+value+"kmph");
}
}
new Car().speed();
}
}
and this code fragment:
Vehicle v = new Vehicle (100);
v.increSpeed(60);
What is the result?
Given the definition of the Vehicle class:
Class Vehhicle {
int distance;//line n1
Vehicle (int x) {
this distance = x;
}
public void increSpeed(int time) {//line n2
int timeTravel = time;//line n3
class Car {
int value = 0;
public void speed () {
value = distance /timeTravel;
System.out.println ("Velocity with new speed"+value+"kmph");
}
}
new Car().speed();
}
}
and this code fragment:
Vehicle v = new Vehicle (100);
v.increSpeed(60);
What is the result?
정답: A
문제6
Given:
class Student {
String course, name, city;
public Student (String name, String course, String city) {
this.course = course; this.name = name; this.city = city;
}
public String toString() {
return course + ":" + name + ":" + city;
}
public String getCourse() {return course;}
public String getName() {return name;}
public String getCity() {return city;}
and the code fragment:
List<Student> stds = Arrays.asList(
new Student ("Jessy", "Java ME", "Chicago"),
new Student ("Helen", "Java EE", "Houston"),
new Student ("Mark", "Java ME", "Chicago"));
stds.stream()
.collect(Collectors.groupingBy(Student::getCourse))
.forEach(src, res) -> System.out.println(scr));
What is the result?
Given:
class Student {
String course, name, city;
public Student (String name, String course, String city) {
this.course = course; this.name = name; this.city = city;
}
public String toString() {
return course + ":" + name + ":" + city;
}
public String getCourse() {return course;}
public String getName() {return name;}
public String getCity() {return city;}
and the code fragment:
List<Student> stds = Arrays.asList(
new Student ("Jessy", "Java ME", "Chicago"),
new Student ("Helen", "Java EE", "Houston"),
new Student ("Mark", "Java ME", "Chicago"));
stds.stream()
.collect(Collectors.groupingBy(Student::getCourse))
.forEach(src, res) -> System.out.println(scr));
What is the result?
정답: B
문제7
Given that these files exist and are accessible:
and given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print only /company/emp?
Given that these files exist and are accessible:
and given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print only /company/emp?
정답: D
문제8
Given:
class FuelNotAvailException extends Exception { }
class Vehicle {
void ride() throws FuelNotAvailException {//line n1
System.out.println("Happy Journey!");
}
}
class SolarVehicle extends Vehicle {
public void ride () throws Exception {//line n2
super ride ();
}
}
and the code fragment:
public static void main (String[] args) throws FuelNotAvailException, Exception { Vehicle v = new SolarVehicle (); v.ride();
}
Which modification enables the code fragment to print Happy Journey!?
Given:
class FuelNotAvailException extends Exception { }
class Vehicle {
void ride() throws FuelNotAvailException {//line n1
System.out.println("Happy Journey!");
}
}
class SolarVehicle extends Vehicle {
public void ride () throws Exception {//line n2
super ride ();
}
}
and the code fragment:
public static void main (String[] args) throws FuelNotAvailException, Exception { Vehicle v = new SolarVehicle (); v.ride();
}
Which modification enables the code fragment to print Happy Journey!?
정답: D
문제9
Given:
and the command:
java Product 0
What is the result?
Given:
and the command:
java Product 0
What is the result?
정답: B
문제10
Given:
Which option fails?
Given:
Which option fails?
정답: D
문제11
Given the code fragment:
What is the result?
Given the code fragment:
What is the result?
정답: A
문제12
Given the code fragment:
Assume that dbURL, userName, and password are valid.
Which code fragment can be inserted at line n1 to enable the code to print Connection Established?
Given the code fragment:
Assume that dbURL, userName, and password are valid.
Which code fragment can be inserted at line n1 to enable the code to print Connection Established?
정답: A
문제13
Given the code fragment:
Which should be inserted into line n1 to print Average = 2.5?
Given the code fragment:
Which should be inserted into line n1 to print Average = 2.5?
정답: B
문제14
Given that data.txt and alldata.txt are accessible, and the code fragment:
What is required at line n1 to enable the code to overwrite alldata.txt with data.txt?
Given that data.txt and alldata.txt are accessible, and the code fragment:
What is required at line n1 to enable the code to overwrite alldata.txt with data.txt?
정답: C