Given code of Test.java file:
package com.udayan.ocp;
import java.util.Arrays;
import java.util.List;
public class Test {
public static void main(String[] args) {
List
list.add("U");
list.forEach(System.out::print);
}
}
What will be the result of compiling and executing Test class?
F: is accessible for reading and below is the directory structure for F:
1. F:.
2. └───A
3. └───B
4. └───C
5. Book.java
'Book.java' file is available under 'C' directory.
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.nio.file.Path;
4. import java.nio.file.Paths;
5.
6. public class Test {
7. public static void main(String[] args) {
8. Path file = Paths.get("F:\\A\\B\\Book.java");
9. System.out.println(file.toAbsolutePath());
10. }
11. }
What will be the result of compiling and executing Test class?
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. 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?
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