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Oracle 1Z0-501 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Object-Oriented Programming | - Classes and Objects
|
| Java Language Fundamentals | - Language Basics
|
| Exception Handling | - Exceptions
|
| Core Java APIs | - Collections and Utilities
|
| Input and Output | - I/O APIs
|
| Concurrency | - Threads
|
Oracle Java Certified Programmer Sample Questions:
Exhibit:
1 . public class X{
2 . private static int a;
3 .
5 . public static void main (String[] args){
6 . modify (a);
7 . }
8 .
9 . public static void modify (int a) {
1 0. a++;
1 1.}
1 2. }
What is the result?
- A. The program runs and prints "0"
- B. The program runs and prints "1"
- C. En error "possible undefined variable" at line 10 causes compilation to fail.
- D. En error "possible undefined variable" at line 5 causes compilation to fail.
- E. The program runs but aborts with an exception.
Correct Answer: A 🗳️
Given:
1 . public class SyncTest {
2 . private int x;
3 . private int y;
4 . public synchronized void setX (int i) (x=1;)
5 . public synchronized void setY (int i) (y=1;)
6 . public synchronized void setXY(int 1)(set X(i); setY(i);)
7 . public synchronized Boolean check() (return x !=y;)
8 . )
Under which conditions will check () return true when called from a different class?
- A. Check() can return true when multiple threads call setX and setY separately.
- B. Check() can never return true.
- C. Check() can return true when setXY is called by multiple threads.
- D. Check() can only return true if SyncTest is changed to allow x and y to be set separately.
Correct Answer: B 🗳️
CORRECT TEXT
Given
1 . Public class test (
2 .Public static void main (String args[])(
3 .System.out.printIn (6 ^ 3);
4 .)
5 .)
What is the output?
Correct Answer:
5
Which two statements are reserved words in Java? (Choose Two)
- A. Default
- B. Import
- C. Run
- D. Implement
Correct Answer: A,B 🗳️
Given:
1 . public class foo {
2 . public static void main (string[]args)
3 . try {return;}
4 . finally {system.out.printIn("Finally");}
5 . }
6 . )
What is the result?
- A. The code will not compile because the catch block is missing.
- B. The program runs and prints nothing.
- C. The code compiles, but an exception is thrown at runtime.
- D. The program runs and prints "Finally"
Correct Answer: D 🗳️
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