Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809

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Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809.pdf (4.63 MB, 需要: 5 个论坛币)

2016-2-17 07:40:36 上传

Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809
需要: 5 个论坛币  [购买]

Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809
A Comprehensive OCPJP 8 Certification Guide
Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809
A Comprehensive OCPJP 8 Certification Guide


Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809
QR code - Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809
       
Book Description
This book offers a comprehensive guide for the Oracle Certified Professional Java SE 8 Programmer Exam. It starts by answering frequently asked exam questions followed by full coverage of exam topics with numerous programming and real-world examples.


Each chapter ends with practice exam questions and a quick summary that reviews key concepts covered in the chapter from the OCPJP exam perspective. The book ends with a full-length, mock exam to ensure you have enough practice before actually taking the exam.


If you are an OCPJP 8 exam aspirant, this book is certainly for you. The book assumes you're already familiar with Java fundamentals, which is in keeping with the prerequisite for having a OCAJP 8 certification.


You'll enjoy reading Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809 because of its clear, simple language; example driven approach; easy-to-read style; and complete focus on the exam requirements.
Book Details
Publisher:        Apress
By:        S G Ganesh, Tushar Sharma, Hari Kiran
ISBN:        978-1-484218-35-8
Year:        2016
Pages:        508
Language:        English
File size:        5 MB
File format:        PDF

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关键词：Professional Profession Programmer Programme Certified answering Oracle Java

OCPJP，有用吗？

1. Listing 6-1. MatchUse.java
   
2. import java.util.stream.IntStream;
   
3. public class MatchUse {
   
4. public static void main(String []args) {
   
5. // Average temperatures in Concordia, Antarctica in a week in October 2015
   
6. boolean anyMatch
   
7. = IntStream.of(-56, -57, -55, -52, -48, -51, -49).anyMatch(temp -> temp > 0);
   
8. System.out.println("anyMatch(temp -> temp > 0): " + anyMatch);
   
9. boolean allMatch
   
10. = IntStream.of(-56, -57, -55, -52, -48, -51, -49).allMatch(temp -> temp > 0);
    
11. System.out.println("allMatch(temp -> temp > 0): " + allMatch);
    
12. boolean noneMatch
    
13. = IntStream.of(-56, -57, -55, -52, -48, -51, -49).noneMatch(temp -> temp > 0);
    
14. System.out.println("noneMatch(temp -> temp > 0): " + noneMatch);
    
15. }
    
16. }

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1. Listing 6-2. FindFirstUse1.java
   
2. import java.lang.reflect.Method;
   
3. import java.util.Arrays;
   
4. import java.util.Optional;
   
5. import java.util.stream.Stream;
   
6. public class FindFirstUse1 {
   
7. public static void main(String []args) {
   
8. Method[] methods = Stream.class.getMethods();
   
9. Optional<String> methodName = Arrays.stream(methods)
   
10. .map(method -> method.getName())
    
11. .filter(name -> name.endsWith("Match"))
    
12. .sorted()
    
13. .findFirst();
    
14. System.out.println("Result: " + methodName.orElse("No suitable method found"));
    
15. }
    
16. }

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1. Listing 6-3. FindFirstUse2.java
   
2. import java.util.OptionalDouble;
   
3. import java.util.stream.DoubleStream;
   
4. public class FindFirstUse2 {
   
5. public static void main(String []args) {
   
6. OptionalDouble temperature = DoubleStream.of(-10.1, -5.4, 6.0, -3.4, 8.9, 2.2)
   
7. .filter(temp -> temp > 0)
   
8. .findFirst();
   
9. System.out.println("First matching temperature > 0 is " + temperature.getAsDouble());
   
10. }
    
11. }

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1. Listing 6-4. OptionalStream.java
   
2. import java.util.Optional;
   
3. public class OptionalStream {
   
4. public static void main(String []args) {
   
5. Optional<String> string = Optional.of(" abracadabra ");
   
6. string.map(String::trim).ifPresent(System.out::println);
   
7. }
   
8. }

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1. Listing 6-5. WordsCalculation.java
   
2. import java.util.Arrays;
   
3. public class WordsCalculation {
   
4. public static void main(String []args) {
   
5. String[] string = "you never know what you have until you clean your room".split(" ");
   
6. System.out.println(Arrays.stream(string).min(String::compareTo).get());
   
7. }
   
8. }

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