Oracle 1Z0-501 Exam : Java Certified Programmer

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Oracle 1Z0-501 Exam Syllabus Topics:

Oracle Java Certified Programmer Sample Questions:

1. 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) En error "possible undefined variable" at line 5 causes compilation to fail.
B) The program runs and prints "0"
C) En error "possible undefined variable" at line 10 causes compilation to fail.
D) The program runs but aborts with an exception.
E) The program runs and prints "1"

2. Given:
1 . public class Foo {
2 . public static void main (String []args) {
3 . int i = 1;
4 . int j = i++;
5 . if ((i>++j) && (i++ ==j)){
6 .i +=j;
7 .}
8 .}
9 .}
What is the final value of i?

A) 1
B) 5
C) 3
D) 4
E) 2

3. Which code determines the int value foo closest to a double value bar?

A) Int foo = (int) Math.abs(bar);
B) Int foo = (int) Math.floor(bar);
C) Int foo = (int) Math.ceil(bar);
D) Int foo = (int) Math.max(bar);
E) Int foo = (int) Math.min(bar);
F) Int foo = (int) Math.round(bar);

4. Which three are valid declarations of a float? (Choose Three)

A) Float foo = 0x0123;
B) Float foo = 42e1;
C) Float foo = 1.0;
D) Float foo = 3.03d;
E) Float foo = -1;
F) Float foo = 2.02f;

5. Given:
1 . public class Test {
2 . public static void main (String[]args) {
3 . String foo = args[1];
4 . String bar = args[2];
5 . String baz = args[3];
6 . System.out.printIn("baz = " + baz);
7 .}
8 . }
And the output:
Baz = 2
Which command line invocation will produce the output?

A) Java Test 2222
B) Java Test 4 3 2 1
C) Java Test 1 2 3 4
D) Java Test 4 2 4 2

Solutions: