Oracle 1Z0-501 real exam prep : Java Certified Programmer

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Oracle 1Z0-501 Exam Syllabus Topics:

Oracle Java Certified Programmer Sample Questions:

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

2. Which method in the Thread class is used to create and launch a new thread of execution?

A) Start();
B) Run(Runnable r);
C) Run();
D) Execute(Thread t);
E) Start(Runnable r);
F) Execute();

3. Which two interfaces provide the capability to store objects using a key-value pair?
(Choose Two)

A) Java.util.Map.
B) Java.util.StoredSet.
C) Java.util.Collection.
D) Java.util.List.
E) Java.util.Set.
F) Java.util.StoredMap.

4. Which two valid declarations of a char? (Choose Two)

A) Char ch = "cafe";
B) Char ch = '\ucafe';
C) Char ch = "a";
D) Char ch = 'cafe';
E) Char ch = '\u10100';
F) Char ch = (char) true;
G) Char ch = '\' ';

5. Which two can be used to create a new Thread? (Choose Two)

A) Implement java.lang.thread and implement the run method.
B) Extend java.lang.Thread and override the run method.
C) Implement java.lang.Thread and implement the start method.
D) Implement java.lang.Runnable and implement the run method.
E) Extend java.lang.Runnable and override the start method.

Solutions: