Become Oracle Certified with updated 1Z0-809 exam questions and correct answers
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.*;
4.
5. public class Test {
6. public static void main(String[] args) {
7. NavigableMap
8. map.put(25, "Pune");
9. map.put(32, "Mumbai");
10. map.put(11, "Sri Nagar");
11. map.put(39, "Chennai");
12.
13. System.out.println(map.headMap(25, true));
14. }
15. }
Below is the code of Test.java file:
1. package com.udayan.ocp;
2.
3. class Outer {
4. static class Inner {
5. static void greetings(String s) {
6. System.out.println(s);
7. }
8. }
9. }
10.
11. public class Test {
12. public static void main(String[] args) {
13. /*INSERT*/
14. }
15. }
Which of the following 2 options can replace /*INSERT*/ such that there on executing class Test, output is: HELLO!?
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.stream.Stream;
4.
5. public class Test {
6. public static void main(String[] args) {
7. Stream
8. stream.sorted().forEach(System.out::println);
9. }
10. }
Which of the following needs to be done, so that output is:
d
cc
bbb
aaaa
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. interface Printer1 {
4. default void print() {
5. System.out.println("Printer1");
6. }
7. }
8.
9. class Printer2 {
10. public void print() {
11. System.out.println("Printer2");
12. }
13. }
14.
15. class Printer extends Printer2 implements Printer1 {
16.
17. }
18.
19. public class Test {
20. public static void main(String[] args) {
21. Printer printer = new Printer();
22. printer.print();
23. }
24. }
What will be the result of compiling and executing Test class?
Which of the following code will create/return a Locale object for the JVM, on which your code is running?
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