Kotlin在线测试

Q: 我可以在同一个测试中评估 Kotlin 和 Android 吗？

是的。我们支持在同一次测试中测试多种技能。您可以查看我们的标准 Android 测试 ，了解测试 Android 技能时会包含哪些类型的问题。最终测试将包括评估 Kotlin、Android 的 MCQ 问题和评估 Kotlin 的编码问题。

Q: What topics are covered in the Kotlin在线测试?

Kotlin基础知识（变量；字符串；功能） kotlin收藏（列表; set; map; iterators） 面向对象的编程（类；继承） 读写文件 标准功能（应用； let;使用;运行） 扩展功能 与API一起工作 添加依赖项 异步编程（Coroutines）

About the test:

Kotlin Online测试使用基于方案的和代码跟踪MCQ问题，以评估候选人使用Kotlin基础知识（变量，字符串），Kotlin Collections（列表，地图，set，Iterators）和kotlin oops（类，senteritance，sashitance，interfaces）的能力开发无效，简洁且可读的Kotlin代码。该测试有编码问题来评估动手的Kotlin编程技能。

Covered skills:

Kotlin基础知识（变量；字符串；功能）
面向对象的编程（类；继承）
标准功能（应用； let;使用;运行）
与API一起工作
异步编程（Coroutines）

kotlin收藏（列表; set; map; iterators）
读写文件
扩展功能
添加依赖项

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9 reasons why

Adaface Kotlin在线测试 is the most accurate way to shortlist Android开发人员s

Reason #1

Tests for on-the-job skills

The Kotlin在线测试 helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

能够理解和使用Kotlin中的变量，字符串和功能
理解和使用Kotlin收藏品，例如列表，集合，地图和迭代器
知识是面向对象的编程概念，例如kotlin中的类和继承
熟悉Kotlin中的阅读和写作文件
了解和利用标准Kotlin功能，例如应用，让，运行和运行
能够在Kotlin中创建和使用扩展功能
在Kotlin与API合作的经验
有关Kotlin中添加和管理依赖关系的知识
在Kotlin中了解与Coroutines的异步编程

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface

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Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

这些只是我们库中有10,000多个问题的一个小样本。关于此的实际问题 Kotlin在线测试将是不可行的.

🧐 Question
Easy twoWheeler Interface OOPs	Solve
What will the following code output?
Easy Secondary Constructor OOPs	Solve
What does the following Kotlin code print?
Easy Registration Queue Logic Queues	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
Medium Visitors Count Strings Logic	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill
	Easy twoWheeler Interface OOPs	3 mins Kotlin	Solve
What will the following code output?
	Easy Secondary Constructor OOPs	2 mins Kotlin	Solve
What does the following Kotlin code print?
	Easy Registration Queue Logic Queues	30 mins Coding	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Medium Visitors Count Strings Logic	30 mins Coding	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	twoWheeler Interface OOPs	Kotlin	Easy	3 mins	Solve
What will the following code output?
	Secondary Constructor OOPs	Kotlin	Easy	2 mins	Solve
What does the following Kotlin code print?
	Registration Queue Logic Queues	Coding	Easy	30 mins	Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount. For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition. ⚠️⚠️⚠️ Note: - The first line of the input is the length of the array. The second line contains all the elements of the array. - The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function. - You need to "print" the final result (not return it) to pass the test cases. For the example discussed above, the input will be: 5 20 70 -40 30 -10 Your code needs to print the following to the standard output: 20 70 30 -40 -10
	Visitors Count Strings Logic	Coding	Medium	30 mins	Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. Example: Input: WWMMWWCCC Expected Output: 4W3C2M Explanation: ‘W’ has the highest count, then ‘C’, then ‘M’. ⚠️⚠️⚠️ Note: - The input is already parsed and passed to a function. - You need to "print" the final result (not return it) to pass the test cases. - If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’. - If any of them have the same count, the output should follow this order - M, W, C.

Reason #4

1200+ customers in 75 countries

借助 Adaface，我们能够将初步筛选流程优化达 75% 以上，为招聘经理和我们的人才招聘团队节省了宝贵的时间！

Brandon Lee, 人事主管, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Kotlin在线测试 in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Kotlin在线测试 from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & benchmarks

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Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring

Learn more

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About the Kotlin在线测试

Why you should use Kotlin在线测试?

The Kotlin在线测试 makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

了解Kotlin基础知识，包括变量，字符串和功能
了解Kotlin收藏品，例如列表，设置，地图和迭代器
精通面向对象的编程概念，包括类和继承
能够在Kotlin中读写文件
熟悉诸如应用，让，运行之类的标准功能
Kotlin中具有扩展功能的经验
在Kotlin与API合作的技巧
了解Kotlin项目中添加依赖项
使用Coroutines了解异步编程的知识
熟练处理科特林的异常和错误
能够使用控制流量语句进行决策

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Kotlin在线测试?

kotlin Collections
kotlin收集量可以使组织和操纵数据。该技能涵盖了各种类型的集合，例如列表，集合，地图和迭代器，这对于在Kotlin应用程序中有效的数据处理至关重要。
面向对象的编程
面向对象面向对象编程（OOP）是用于通过类和对象建模现实世界实体的范式。该技能侧重于类，继承和多态性等概念，这些概念在设计模块化和可维护的kotlin代码中起着关键作用。
读取和写文件
读取和写文件是一个访问和操纵存储在文件中的数据的基本技能。通过了解这项技能，开发人员可以有效地与外部资源进行交互并处理诸如Kotlin中从读取和写入文件的操作。
标准函数
Kotlin中的标准功能，例如适用，让，运行并运行，提供简洁的语法以执行共同的操作。掌握这些功能可以增强Kotlin中的代码可读性，可重复性和整体代码质量。
扩展功能
扩展功能使开发人员可以扩展具有其他功能的现有类。该技能使开发人员能够通过定义扩展功能来编写简洁和可重复使用的代码，从使用Kotlin中的网络请求来自各种来源。该技能对于开发与Web服务，数据库和其他外部资源互动的应用程序至关重要。
添加依赖关系
在Kotlin中添加依赖关系允许开发人员利用现有的库和框架来增强现有的库和框架他们的申请。了解如何添加和管理依赖关系对于有效利用第三方代码并最大程度地减少开发时间至关重要。
异步编程
使用coroutines使用Coroutines的异步编程使开发人员能够编写非阻滞和高效的编程可以有效处理并发性的代码。该技能在现代应用程序开发中尤其重要，因为它可以平稳执行耗时的任务而不会阻止主线程。
Full list of covered topics
The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Kotlin在线测试 to be based on.
变量
字符串
功能
列表
放
地图
迭代器
课程
遗产
读取文件
写文件
应用功能
让功能
使用功能
运行功能
扩展功能
与API一起工作
添加依赖项
Coroutines
异常处理
无效安全
类型推理
lambda表达式
高阶功能
范围功能
收集操作
文件输入/输出
遗产
多态性
抽象类
接口
对象声明
可见性修饰符
Java互操作性
lambda功能
递归
仿制药
访问修饰符
Kotlin DSL
命名参数
操作员超载
密封的课程
聪明的演员
数据类
内联函数
范围操作
序列
单位和什么类型
反射
懒惰的初始化
代表团
LateInit修饰符
类型别名
暂停功能
流量控制
收集功能
字符串插值
类型检查
序列化

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What roles can I use the Kotlin在线测试 for?

Android开发人员
Kotlin开发人员
后端开发人员
完整的堆栈开发人员
软件工程师
移动开发人员
前端开发人员
Java开发人员

How is the Kotlin在线测试 customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

熟悉Kotlin的功能编程概念
Kotlin的单位测试框架的经验
对Kotlin的设计模式的理解
使用Lambda表达式和高阶功能的技巧
Kotlin中多线程概念的知识
能够创建和使用Kotlin数据类
在Kotlin中处理无效类型和安全电话的经验
熟练使用Kotlin的标准库功能和API
理解Kotlin中的序列化和反序化
能够有效调试和对Kotlin代码进行解决问题
Kotlin中记忆管理原则的知识

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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招聘经理认为，通过小组面试中提出的技术问题，他们能够判断哪些候选人得分更高，并与得分较差的候选人区分开来。他们是非常满意通过 Adaface 筛选入围的候选人的质量。

85%

减少筛查时间

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Kotlin在线测试常见问题解答

我可以在同一个测试中评估 Kotlin 和 Android 吗？

是的。我们支持在同一次测试中测试多种技能。您可以查看我们的标准 Android 测试，了解测试 Android 技能时会包含哪些类型的问题。最终测试将包括评估 Kotlin、Android 的 MCQ 问题和评估 Kotlin 的编码问题。

我可以将 Kotlin 作为 Android 测试的可选技能吗？

是的。我们设计了自定义聊天流程，其中一些技能是可选的。对于 Android 角色，我们通常设计测试，让候选人在 Java 和 Kotlin 之间选择他们喜欢的编程语言。机器人只会针对所选的编程语言提出问题。编码问题可以限制为所需的编程语言。在这种情况下，考生可以选择 Java 和 Kotlin 来编写代码。