The last statement inside main(String []) method, increments value of i, which means it is not effectively final and hence compilation error.
//Test.java
package com.udayan.ocp;
class Player {
String name;
int age;
Player() {
this.name = "Virat";
this.age = 29;
}
public int hashCode() {
return 100;
}
}
public class Test {
public static void main(String[] args) {
System.out.println(new Player());
}
}
Hexadecimal representation of 100 is 64.
Which of the following option is correct?
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.Arrays;
4. import java.util.Comparator;
5. import java.util.List;
6.
7. class Person {
8. private String firstName;
9. private String lastName;
10.
11. public Person(String firstName, String lastName) {
12. this.firstName = firstName;
13. this.lastName = lastName;
14. }
15.
16. public String getFirstName() {
17. return firstName;
18. }
19.
20. public String getLastName() {
21. return lastName;
22. }
23.
24. public String toString() {
25. return "{" + firstName + ", " + lastName + "}";
26. }
27. }
28.
29. public class Test {
30. public static void main(String[] args) {
31. List
32. new Person("Tom", "Riddle"),
33. new Person("Tom", "Hanks"),
34. new Person("Yusuf", "Pathan"));
35. list.stream().sorted(Comparator.comparing(Person::getFirstName).reversed()
36. .thenComparing(Person::getLastName)).forEach(System.out::println);
37. }
38. }
What will be the result of compiling and executing Test class?
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.Arrays;
4. import java.util.List;
5. import java.util.function.Predicate;
6.
7. public class Test {
8. public static void main(String[] args) {
9. List
10. Predicate
11. int ctr = 1;
12. boolean result = num > 0;
13. System.out.print(ctr++ + ".");
14. return result;
15. };
16.
17. list.stream().filter(predicate).findFirst();
18. }
19. }
What will be the result of compiling and executing Test class?
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