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Oracle 1Z0-501 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Object-Oriented Programming | - Inheritance and Polymorphism - Encapsulation and Abstraction - Classes and Objects |
| Topic 2: Core Java APIs | - java.lang and java.util Packages - Exception Handling |
| Topic 3: Advanced Concepts | - Multithreading Basics - Collections Framework |
| Topic 4: Java Fundamentals | - Language Syntax and Structure - Data Types and Variables |
Oracle Java Certified Programmer Sample Questions:
Given:
1. //point X
2 . public class foo (
3 . public static void main (String[]args) throws Exception {
4 . java.io.printWriter out = new java.io.PrintWriter (
5 . new java.io.outputStreamWriter (System.out), true;
6 . out.printIn("Hello");
7 . }
8 . }
Which statement at PointX on line 1 allows this code to compile and run?
- A. Include java.io.*;
- B. Import java.io.PrintWriter;
- C. No statement is needed.
- D. Include java.io.PrintWriter;
- E. Import java.io.*;
Correct Answer: C 🗳️
Exhibit:
ClassOne.java
1. package com.abc.pkg1;
2. public class ClassOne {
3. private char var = 'a';
4. char getVar() {return var;}
5. } ClassTest.java
1 . package com.abc.pkg2;
2 . import com.abc.pkg1.ClassOne;
3 . public class ClassTest extends ClassOne {
4 . public static void main(String[]args){
5 .char a = new ClassOne().getVar();
6 .char b = new ClassTest().getVar();
7 .}
8 . }
What is the result?
- A. Compilation succeeds but an exception is thrown at line 5 in ClassTest.java.
- B. Compilation succeeds but an exception is thrown at line 6 in ClassTest.java.
- C. Compilation succeeds and no exceptions are thrown.
- D. Compilation will fail.
Correct Answer: C 🗳️
Which code determines the int value foo closest to a double value bar?
- A. Int foo = (int) Math.floor(bar);
- B. Int foo = (int) Math.min(bar);
- C. Int foo = (int) Math.ceil(bar);
- D. Int foo = (int) Math.max(bar);
- E. Int foo = (int) Math.abs(bar);
- F. Int foo = (int) Math.round(bar);
Correct Answer: F 🗳️
Which two demonstrate encapsulation of data? (Choose Two)
- A. Member data can be modified directly.
- B. The access modifier to member data is private.
- C. The access modifier for methods is protected.
- D. Member data have no access modifiers.
- E. Methods provide for access and modification of data.
Correct Answer: B,E 🗳️
Which statement is true?
- A. Any statement that may throw an Error must be enclosed in a try block.
- B. Any statement that may throw an Exception must be enclosed in a try block.
- C. Any statement that may thro a runtimeException must be enclosed in a try block.
- D. The Error class is a untimeException.
- E. No exceptions are subclasses of Error.
Correct Answer: B 🗳️
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