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Java 8 Assessment Test

This Java 8 test evaluates candidates on key features such as Optional Class, Performance Considerations, Concurrency Utilities, Lambda Expression, Streams API, Default Methods in Interfaces, New Date and Time API, Collectors, and Method References.

Proficiency Level
Beginner-Expert
Experience
0-8 years
Duration
60 mins
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Use Case

  • Assesses Java 8 Lambda Expressions and Streams API proficiency.
  • Evaluates understanding of concurrency and performance optimization.
  • Tests knowledge of Java 8 Date/Time API and Optional Class.
  • Identifies expertise in using method references and default methods.

Skills Covered

Lambda Expression
Streams API
Concurrency Utilities
Collectors
New Date and Time API
Performance Considerations
Optional Class
+2 more

About

Java 8 Assessment Test

This Java 8 test is designed to assess candidates' understanding and proficiency in utilizing the core features introduced in Java 8. It covers essential topics such as the Optional Class, which helps in avoiding null references, and Performance Considerations to optimize code efficiency. The test also evaluates knowledge of Concurrency Utilities for managing multi-threaded applications, and Lambda Expressions for functional programming. Additionally, it includes Streams API for processing sequences of elements, Default Methods in Interfaces for backward compatibility, the New Date and Time API for handling date/time operations, Collectors for data collection, and Method References for cleaner code. This comprehensive assessment ensures that candidates are well-versed in Java 8's capabilities, making them suitable for roles that require up-to-date Java expertise.

Target Audience

This assessment is ideal for roles such as Java Developer (Entry-Level) and Java Developer (Mid-Level).

Prerequisites
  • Understanding of basic Java programming concepts
  • Familiarity with object-oriented programming principles
  • Knowledge of Java syntax and semantics
  • Experience with Java development environments
  • Basic understanding of functional programming concepts
  • Familiarity with multi-threading and concurrency
  • Awareness of Java 8 features and enhancements
Test Overview
Duration
60 mins
Questions
10
Passing Score
70%

Questions

Java 8 Lambda Expression Evaluation
Java 8
Java 8
Lambda Expressions
Streams
What this question evaluates
This question assesses the candidate's understanding of Java 8 streams, lambda expressions, filtering, mapping, and summing elements in a list.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Counting with Streams API
Java
Java
Streams API
Functional Programming
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Java Concurrency Utilities in Practice
Java
Java
Concurrency
Java 8
Concurrent Programming
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Java 8 Collectors - Grouping by Classifier Function
Java 8
Java 8
Collectors
Map
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Java 8 Date and Time API Proficiency
Java 8
Java 8
Date and Time API
Programming
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Java Multi-threading Performance Optimization
Java
Java
Performance
Multi-threading
Optimization
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Optional Class Usage in Java 8
Java 8
Java 8
Optional
Null Handling
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Java 8 Method References vs Lambda Expressions
Java
Java
Lambda Expressions
Method References
Java 8
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Java 8 Streams API Transformation and Filtering
Java
Java
Streams API
Transformation
Filtering
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Understanding Default Methods in Java Interfaces
Java 8
Java 8
default methods
interfaces
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
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Candidate
Passed
85%
AI Summary
Skills Performance
Score
Lambda Expression
87%
Streams API
80%
Concurrency Utilities
85%
Collectors
82%
Areas of Improvement
Review
Collectors
Practice
Streams API
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