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What will be the result of compiling and executing Test class?
1. package com.udayan.oca;
2.
3. import java.util.ArrayList;
4. import java.util.List;
5.
6. public class Test {
7. public static void main(String[] args) {
8. List
9. list.add(100);
10. list.add(200);
11. list.add(100);
12. list.add(200);
13. list.remove(new Integer(100));
14.
15. System.out.println(list);
16. }
17. }
Consider below code of Test.java file:
1. package com.sampleproject.oca;
2.
3. public class Test {
4. public static void main(String[] args) {
5. /*INSERT*/ x = 7, y = 200;
6. System.out.println(String.valueOf(x + y).length());
7. }
8. }
Which of the following options, if used to replace /*INSERT*/, will compile successfully and on execution will print 3 on to the console?
Select 3 options.
What will be the result of compiling and executing Test class?
1. //Test.java
2. package com.udayan.oca;
3.
4. class Point {
5. static int x;
6. private int y;
7.
8. public String toString() {
9. return "Point(" + x + ", " + y + ")";
10. }
11. }
12.
13. public class Test {
14. public static void main(String[] args) {
15. Point p1 = new Point();
16. p1.x = 100;
17. p1.y = 200;
18.
19. Point p2 = new Point();
20. p2.x = 100;
21. p2.y = 200;
22.
23. System.out.println(p1);
24. }
25. }
Consider below codes of 2 java files:
1. //Flyable.java
2. package com.sampleproject.oca;
3.
4. public interface Flyable {
5. static int horizontalDegree() { //Line n1
6. return 20;
7. }
8.
9. default void fly() {
10. System.out.println("Flying at " + horizontalDegree() + " degrees."); //Line n2
11. }
12.
13. void land();
14. }
1. //Aeroplane.java
2. package com.sampleproject.oca;
3.
4. public class Aeroplane implements Flyable {
5. public void land() {
6. System.out.println("Landing at " + -Flyable.horizontalDegree() + " degrees."); //Line n3
7. }
8.
9. public static void main(String[] args) {
10. new Aeroplane().fly();
11. new Aeroplane().land();
12. }
13. }
What will be the result of compiling and executing Aeroplane class?
Which of the following method is declared in Predicate
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