Latest May-2022 Oracle 1Z0-819 Dumps Updated 215 Questions [Q70-Q90]

4.7/5 - (6 votes)

Latest May-2022 Oracle 1Z0-819 Dumps Updated 215 Questions

PDF Download Free of 1Z0-819 Valid Practice Test Questions

Oracle 1Z0-819 Exam Syllabus Topics:

Topic Details
Topic 1
  • Handle text using String and StringBuilder classes
  • Utilize polymorphism and casting to call methods, differentiate object type versus reference type
Topic 2
  • Define and use fields and methods, including instance, static and overloaded methods
  • Working with Arrays and Collections
Topic 3
  • Understand variable scopes, apply encapsulation and make objects immutable
  • Connect to and perform database SQL operations, process query results using JDBC API
Topic 4
  • Create and use subclasses and superclasses, including abstract classes
  • Use local variable type inference, including as lambda parameters
Topic 5
  • Create and use interfaces, identify functional interfaces
  • Initialize objects and their members using instance and static initialiser statements and constructors
Topic 6
  • Implement serialization and deserialization techniques on Java objects
  • Declare and instantiate Java objects including nested class objects
Topic 7
  • Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
  • Sort collections and arrays using Comparator and Comparable interfaces
Topic 8
  • Secure resource access including filesystems, manage policies and execute privileged code
  • Develop thread-safe code, using different locking mechanisms
Topic 9
  • Deploy and execute modular applications, including automatic modules
  • Implement functional interfaces using lambda expressions

Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in the ORACLE 1Z0-006 exam dumps:

  • Handle text using String and StringBuilder classes
  • Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
  • Use local variable type inference, including as lambda parameters

 

NO.70 Given:

and
checkQuality(QUALITY.A);
and

Which code fragment can be inserted into the switch statement to print Best?

 
 
 
 

NO.71 Given this enum declaration:

Examine this code:
System.out.println(Letter.values()[1]);
What code should be written at line 5 for this code to print 200?

 
 
 
 

NO.72 Given:

Which code, when inserted at one or more marked positions, would allow classes B and C to compile?

 
 
 
 

NO.73 Given:

What is the result?

 
 
 
 
 

NO.74 Given the code fragment:

Which code fragment replaces the for statement?

 
 
 
 

NO.75 Given the code fragment:

You must make the countvariable thread safe.
Which two modifications meet your requirement? (Choose two.)

 
 
 
 
 

NO.76 Which set of commands is necessary to create and run a custom runtime image from Java source files?

 
 
 
 

NO.77 Given:

Which three are true? (Choose three.)

 
 
 
 
 
 
 
 
 

NO.78 Given:

Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)

 
 
 
 
 

NO.79 Given the code fragment:
Path currentFile = Paths.get(“/scratch/exam/temp.txt”);
Path outputFile = Paths get(“/scratch/exam/new.txt”);
Path directory = Paths.get(“/scratch/”);
Files.copy(currentFile, outputFile);
Files.copy(outputFile, directory);
Files.delete (outputFile);
The /scratch/exam/temp.txt file exists. The /scratch/exam/new.txt and /scratch/new.txt files do not exist.
What is the result?

 
 
 
 

NO.80 Given the code fragment:

What is the result?

 
 
 
 
 

NO.81 Given:
/code/a/Test.java
containing:

and
/code/b/Best.java
containing:
package b;
public class Best { }
Which is the valid way to generate bytecode for all classes?

 
 
 
 
 
 

NO.82 Given:

What is the result?

 
 
 
 

NO.83 Given the code fragment:

What is the result?

 
 
 
 

NO.84 Given:

Which statement is true about the Fox class?

 
 
 
 
 

NO.85 Given:

What is the output?
banana orange apple lemon

 
 
 
 
 

NO.86 Given the code fragment:

What is the result?
EUR -> 0.84

 
 
 
 

NO.87 Given:

What is the expected result of javac?

 
 
 
 

NO.88 Given:

If file “App.config” is not found, what is the result?

 
 
 
 

NO.89 Given:

What is the result?

 
 
 
 

NO.90 Given:

Which two constructors will compile and set the class field strings? (Choose two.)

 
 
 
 
 

1Z0-819 Test Engine files, 1Z0-819 Dumps PDF: https://www.braindumpspass.com/Oracle/1Z0-819-practice-exam-dumps.html

More Posts

Recent Comments
    Categories

    Post: Latest May-2022 Oracle 1Z0-819 Dumps Updated 215 Questions [Q70-Q90]

    Leave a Reply

    Your email address will not be published. Required fields are marked *

    Enter the text from the image below