Oracle 1Z0-501 : Java Certified Programmer

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Oracle 1Z0-501 Exam Syllabus Topics:

Oracle Java Certified Programmer Sample Questions:

Question 1

Given:
1 . public class Foo {
2 . private int val;
3 . public foo(int v) (val = v;)}
4 . public static void main (String [] args){
5 . Foo a = new Foo (10);
6 . Foo b = new Foo (10);
7 . Foo c = a;
8 . int d = 10;
9 . double e = 10.0;
1 0. }
1 1. }
Which three logical expression evaluate to true? (Choose Three)

A. (b ==c)
B. (a ==c)
C. (d ==10.0)
D. (b ==d)
E. (d ==e)
F. (a ==b)

Question 2

Which four types of objects can be thrown using the throw statement? (Choose Four)

A. RuntimeException
B. Event
C. Throwable
D. Error
E. Object
F. Exception

Question 3

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

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

Question 4

Which gets the name of the parent directory file "file.txt"?

A. String name= (new File("file.txt")).getParent();
B. String name = (new File("file.txt")).getParentName();
C. String name= (new File("file.txt")).getParentFile();
D. Directory dir=(new File ("file.txt")).getParentDir();
String name= dir.getName();
E. String name= File.getParentName("file.txt");

Question 5

CORRECT TEXT
Exhibit:
1 . public class test {
2 . public static string output = ""
3 .
4 . public static void foo(int i) {
5 . try {
6 . if(i= =1) {
7 . throw new Exception ();
8 .}
9 . output += "1";
1 0. )
1 1. catch(Exception e) {
1 2. output += "2";
1 3. return;
1 4. )
1 5. finally (
1 6. output += "3";
1 7. )
1 8. output += "4";
1 9. )
2 0.
2 1. public static void main (string args[])(
2 2. foo(0);
2 3. foo(1);
2 4.
2 5.)
2 6. )
What is the value of the variable output at line 24?

Solutions: