Get real 1Z0-501 exam questions for better preparation

Oracle 1Z0-501 Exam Overview:

Oracle 1Z0-501 Exam Syllabus Topics:

Oracle Java Certified Programmer Sample Questions:

Question 1

Which statement is true?

A. If only one thread is blocked in the wait method of an object, and another thread executes the modify on that same object, then the first thread immediately resumes execution.
B. If two threads are blocked in the wait method of one object, and another thread executes the notify method on the same object, then the first thread that executed the wait call first definitely resumes execution as a direct and sole consequence of the notify call.
C. If a thread is blocked in the wait method of an object, and another thread executes the notify method on the same object, then the first thread definitely resumes execution as a direct and sole consequence of the notify call.
D. If a thread is blocked in the wait method of an object, and another thread executes the notify method on the same object, it is still possible that the first thread might never resume execution.

Question 2

Exhibit:
1. class A {
2 . public int getNumber(int a) {
3 .return a + 1;
4 .}
5 .}
6 .
7 . class B extends A {
8 . public int getNumber (int a) {
9 . return a + 2
1 0. }
1 1.
1 2. public static void main (String args[]){
1 3. A a = new B();
1 4. System.out.printIn(a.getNumber(0));
1 5.}
1 6. }
What is the result?

A. An error at line 14 causes compilation to fail.
B. An error at line 8 causes compilation to fail.
C. Compilation succeeds and 2 is printed.
D. Compilation succeeds and 1 is printed.
E. An error at line 13 causes compilation to fail.

Question 3

Exhibit:
1 . public class SwitchTest {
2 . public static void main (String []args){
3 . System.out.PrintIn("value =" +switchIt(4));
4 .}
5 . public static int switchIt(int x){
6 . int j = 1;
7 . switch (x) {
8 . case 1: j++;
9 . case 2: j++;
1 0. case 3: j++;
1 1. case 4: j++;
1 2. case 5: j++;
1 3. default:j++;
1 4. }
1 5. return j + x;
1 6. }
1 7.}
What is the output from line 3?

A. Value = 6
B. Value = 3
C. Value = 4
D. Value = 5
E. Value = 7
F. Value = 8

Question 4

Given:
1 . public class test (
2 . public static void main (String args[]){
3 .int i = 0xFFFFFFF1;
4 .int j = ~i;
5 .
6 .}
7 . )
What is the decimal value of j at line 5?

A. An error at line 4 causes compilation to fail.
B. 1
C. -15
D. An error at line 3 causes compilation to fail.
E. 0
F. 14

Question 5

Given:
1 . public class ArrayTest {
2 . public static void main (String[]args){
3 . float f1[], f2[];
4 . f1 = new float [10];
5 . f2 = f1;
6 . System.out.printIn ("f2[0]=" + f2[0]);
7 .}
8 .}
What is the result?

A. It prints f2[0] = NaN
B. It prints f2[0] = 0.0
C. An error at line 6 causes an exception at runtime.
D. An error at line 6 causes compile to fail.
E. An error at line 5 causes compile to fail.

Solutions: