Oracle 1Z0-501 : Java Certified Programmer

1Z0-501 real exams

Exam Code: 1Z0-501

Exam Name: Java Certified Programmer

Updated: Aug 23, 2026

Q & A: 147 Questions and Answers

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Oracle 1Z0-501 Exam Syllabus Topics:

SectionObjectives
Exception Handling- Exceptions
  • 1. Exception Propagation
  • 2. try/catch/finally
  • 3. Checked and Unchecked Exceptions
Core Java APIs- Collections and Utilities
  • 1. Arrays
  • 2. Strings
  • 3. Collections Framework
Concurrency- Threads
  • 1. wait/notify Mechanism
  • 2. Synchronization
  • 3. Thread Lifecycle
Java Language Fundamentals- Language Basics
  • 1. Operators and Expressions
  • 2. Variables and Data Types
  • 3. Control Flow Statements
Object-Oriented Programming- Classes and Objects
  • 1. Inheritance
  • 2. Polymorphism
  • 3. Encapsulation
  • 4. Interfaces and Abstract Classes
Input and Output- I/O APIs
  • 1. Serialization
  • 2. Streams

Oracle Java Certified Programmer Sample Questions:

1. CORRECT TEXT
Given:
AnInterface is an interface.
AnAdapter0 is a non-abstract, non-final class with a zero argument constructor.
AnAdapter1 is a non-abstract, non-final class without a zero argument constructor, but with a constructor that takes one int argument.
Which two construct an anonymous inner class? (Choose Two)
F.AnAdapter1 aa=new AnAdapter1(){}
G.AnAdapter0 aa=new AnAdapter0(){}
H.AnAdapter0 aa=new AnAdapter0(5){}
I.AnAdapter1 aa=new AnAdapter1(5){}
J.AnInterface a1=new AnInterface(5){}


2. Which constructs a DataOutputStream?

A) New dataInputStream("in.txt");
B) New dataInputStream(new file("in.txt"));
C) New dataInputStream(new FileWriter("in.txt"));
D) New dataInputStream(new FileInputStream("in.txt"));
E) New dataInputStream(new InputStream("in.txt"));
F) New dataInputStream(new writer("in.txt"));


3. CORRECT TEXT
Given:
1 . String foo = "base";
2 . foo.substring(0,3);
3 . foo.concat("ket");
4 . foo += "ball";
5 . Type the value of foo at line 8.


4. Exhibit:
1 . public class test {
2 .public static void add3 (Integer i) }
3 .int val = i.intValue ( );
4 .val += 3;
5 .i = new Integer (val);
6 .}
7 .
8 . public static void main (String args [ ] ){
9 .Integer i = new Integer (0);
1 0.add3 (i);
1 1.system.out.printIn (i.intValue ( ));
1 2.}
1 3.)
What is the result?

A) The program prints "0".
B) Compilation will fail.
C) The program prints "3".
D) Compilation will succeed but an exception will be thrown at line 3.


5. You need to store elements in a collection that guarantees that no duplicates are stored.
Which two interfaces provide that capability? (Choose Two)

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


Solutions:

Question # 1
Answer: Only visible for members
Question # 2
Answer: D
Question # 3
Answer: Only visible for members
Question # 4
Answer: A
Question # 5
Answer: B,C

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