1Z0-809.pdf
Q: 1
Given the code fragments :
and
What is the result?
and
What is the result?Options
Q: 2
Given:
public enum USCurrency {
PENNY (1),
NICKLE(5),
DIME (10),
QUARTER(25);
private int value;
public USCurrency(int value) {
this.value = value;
}
public int getValue() {return value;}
}
public class Coin {
public static void main (String[] args) {
USCurrency usCoin =new USCurrency.DIME;
System.out.println(usCoin.getValue()):
}
}
Which two modifications enable the given code to compile? (Choose two.)
Options
Q: 3
Given:
public class Product {
int id; int price;
public Product (int id, int price) {
this.id = id;
this.price = price;
}
Public String toString () { return id + “:” + price;)
}
and the code fragment:
List products = new ArrayList (Arrays.asList(new Product(1, 10),
new Product (2, 30),
new Product (3, 20));
Product p = products.stream().reduce(new Product (4, 0), (p1, p2) -> {
p1.price+=p2.price;
return new Product (p1.id, p1.price);});
products.add(p);
products.stream().parallel()
.reduce((p1, p2) - > p1.price > p2.price ? p1 : p2)
.ifPresent(System.out: :println);
What is the result?
Options
Q: 4
Given the code fragment:
List nL = Arrays.asList(“Jim”, “John”, “Jeff”);
Function funVal = s -> “Hello : “.contact(s);
nL.Stream()
.map(funVal)
.peek(System.out::print);
What is the result?
Options
Q: 5
Given:
1. abstract class Shape {
2. Shape ( ) { System.out.println (“Shape”); }
3. protected void area ( ) { System.out.println (“Shape”); }
4. }
5.
6. class Square extends Shape {
7. int side;
8. Square int side {
9./* insert code here */
10. this.side = side;
11. }
12. public void area ( ) { System.out.println (“Square”); }
13. }
14. class Rectangle extends Square {
15. int len, br;
16. Rectangle (int x, int y) {
17. /* insert code here */
18. len = x, br = y;
19. }
20. void area ( ) { System.out.println (“Rectangle”); }
21. }
Which two modifications enable the code to compile? (Choose two.)
Options
Q: 6
For which three objects must a vendor provide implementations in its JDBC driver? (Choose three.)
Options
Q: 7
Given the code fragment:
List listVal = Arrays.asList(“Joe”, “Paul”, “Alice”, “Tom”);
System.out.println (
// line n1
);
Which code fragment, when inserted at line n1, enables the code to print the count of string
elements whose length is greater than three?
Options
Q: 8
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?
Options
Q: 9
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?
What is required at line n1 to enable the code to overwrite alldata.txt with data.txt?Options
Q: 10
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 vehicles = new TreeSet ();
vehicles.add(new Vehicle (10123, “Ford”));
vehicles.add(new Vehicle (10124, “BMW”));
System.out.println(vehicles);
What is the result?
Options
Question 1 of 10
