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.time.*;
4.
5. public class Test {
6. public static void main(String [] args) {
7. System.out.println(Duration.ofDays(-2));
8. }
9. }
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. 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?
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