1Z0-809 Free Practice Test

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?

1. A. Velocity with new speed
2. B. A compilation error occurs at line n1.
3. C. A compilation error occurs at line n2.
4. D. A compilation error occurs at line n3.

Correct Answer: A

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;
}
and the code fragment: List 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))
.f orEach(src, res) -> System.out.println(scr)); What is the result?

1. A. [Java EE: Helen:Houston][Java ME: Jessy:Chicago, Java ME: Mark:Chicago]
2. B. Java EEJava ME
3. C. [Java ME: Jessy:Chicago, Java ME: Mark:Chicago] [Java EE: Helen:Houston]
4. D. A compilation error occurs.

Correct Answer: B

Given the content:
< ><>>< ><>

1. A. currentLocale = new Locale (“de”, “DE”);
2. B. currentLocale = new Locale.Builder ().setLanguage (“de”).setRegion (“DE”).build ();
3. C. currentLocale = Locale.GERMAN;
4. D. currentlocale = new Locale(); currentLocale.setLanguage (“de”); currentLocale.setRegion (“DE”);
5. E. currentLocale = Locale.getInstance(Locale.GERMAN,Locale.GERMANY);

Correct Answer: B

Given:
< ><>>< ><>

1. A. Open-Close– Exception – 1 Open–Close–
2. B. Open–Close–Open–Close–
3. C. A compilation error occurs at line n1.
4. D. Open–Close–Open–

Correct Answer: C

Given:
public class Canvas implements Drawable { public void draw () { }
}
public abstract class Board extends Canvas { }
public class Paper extends Canvas { protected void draw (int color) { }
}
public class Frame extends Canvas implements Drawable { public void resize () { }
}
public interface Drawable { public abstract void draw ();
}
Which statement is true?

1. A. Board does not compile.
2. B. Paper does not compile.
3. C. Frame does not compile.
4. D. Drawable does not compile.
5. E. All classes compile successfully.

Correct Answer: E