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?
Consider the code of Greet.java file:
1. package com.udayan.ocp;
2.
3. public final class Greet {
4. private String msg;
5. public Greet(String msg) {
6. this.msg = msg;
7. }
8.
9. public String getMsg() {
10. return msg;
11. }
12.
13. public void setMsg(String msg) {
14. this.msg = msg;
15. }
16. }
Is Greet class an immutable class?
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.ArrayDeque;
4. import java.util.Deque;
5.
6. public class Test {
7. public static void main(String[] args) {
8. Deque
9. deque.push(new Boolean("abc"));
10. deque.push(new Boolean("tRuE"));
11. deque.push(new Boolean("FALSE"));
12. deque.push(true);
13. System.out.println(deque.pop() + ":" + deque.peek() + ":" + deque.size());
14. }
15. }
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?
Given the content of Operator.java, EngineOperator.java, and Engine.java files:


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