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Java Online Test Assessment
Clock
Test duration:
20
min
Notes
No. of questions:
3
Tie
Level of experience:
Entry/Mid/Senior

JAVA Test Descriptive

Our Descriptive Java online test enables recruiters and hiring managers to objectively assess a candidate’s Java programming skills. The Java online test identifies the right-fit candidates and reduces hiring time by 45%. This test helps hire Java developers with 2-3 years of experience.

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Candidates
Assessed
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Organizations Served
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About

Java Online Test Assessment

Core Java online test for experienced candidates helps technical recruiters and hiring managers to effortlessly assess the technical knowledge of senior candidates in Core Java. Java 8 online test is designed and validated by experienced Java experts to assess & hire Core Java developers per industry standards.  

  

Why use iMocha’s core Java online test for experienced?   

  

Core Java online test helps employers in many ways, including hiring job-fit experienced candidates quickly, taking unbiased employee performance appraisal decisions, and reducing hassles in mass recruitment. This AI-powered Java 8 assessment test reduces technical screening time by 85%.  

Use iMocha's assessment to hire skill fit, remove bias, and save money!
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How it works

Test Summary

Core Java assessment test helps to screen the candidates who possess traits as follows:    

  

  • Extensive experience in implementing object-oriented concepts & knowledge   
  • Ability to use advanced class features like polymorphism, class overriding, and interfacing to develop efficient and reusable code   
  • Strong knowledge of Java 8 Lambda, Streams, Optional, and other Functional interfaces   


Employers can use intelligent & powerful Test Insights that will help to identify job-fit candidates more accurately with score distribution & section analysis features. Assessing candidates with a Core Java online assessment test is secure and reliable. You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Features like window violation and webcam proctoring help detect cheating during the test.   

Java 8 online test is designed considering EEOC guidelines. It will help you assess & hire diverse talent without any bias.    

Java 8 test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, LogicBox (AI-based Pseudo-Coding Platform), Coding Simulators, True or False Questions, etc. 

Test Duration
20
No. of Questions
3
Level of Expertise
Entry/Mid/Senior
Useful for hiring
  • Java Developer with 2 to 3 years of experience
Topics Covered
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File

The Descriptive Java online test contains questions on a Java file containing information on the Java program.

Thread

Online Java test evaluates candidate’s knowledge of Thread, a path followed when executing a program.
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Strings

The test assesses a candidate’s understanding of the sequence of characters in programming.
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JDBC

Online Java test gauges applicant’s understanding of application programming interfaces for the programming language Java, which defines how a client may access a database.
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Java Array

The Java online test evaluates the candidate’s knowledge of an object which contains elements of a similar data type.
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Exception Handling

The test checks the understanding of a powerful mechanism to handle runtime errors so that the normal flow of the application can be maintained.
Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.

Question types :

Multiple Option

Topic:

Difficulty:

Hard


Q 1. You have been asked to train « Naive Bayes model for spam detection dataset

Using Python command, what wil you add in the given code at XXXX to deciore, it and train your modal for the given dataset?

import numpy os np

X= nporroyll 3. 2b[1 21 [2.21.[3,21)
Y= nporray(fi.a,a.1))

XXXX

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

Question types :

Multiple Option

Topic:

Machine teaming

Difficulty:

Hard


Q 1. Q2 Lets assume that you have 6 Pandas DataFrome(af) in the below tole.

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074

When the following commend is executed, what hoppens to the DatoFrome?

df= defiinat()
Y= nporray(fi.a,a.1))

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
it gives an error becouse of the third row which has on empty string.
None of these

Question types :

AI-Logic Box

Topic:

Difficulty:

Medium

Question:

You receive a response from GET request to server and log in to the console. You decided to use Java 8 Streams features to do it. You use custom logger interface.
You have the script almost completed for this task.

Few lines in the script are missing which are indicated by (Blank).
You need to complete the script by using the following guidelines.

At Blank 1: Create default method of interface with the signature: log(String content) which simply prints the content to the console.

At Blank 2: Create the stream of lines from reader and save it in lines variable.

At Blank 3: Using forEach method and method reference, log each line of lines stream.
 

interface Logger {

     

   class Main {
    public static void main(String[] args) throws Exception {
        Logger logger = new Logger() {
        };
        URL url = new URL("http://www.google.com/");
        URLConnection connection = url.openConnection();
        BufferedReader reader = new BufferedReader(new
        InputStreamReader(
        connection.getInputStream()));
        Stream<String> lines;
       
       
 
    }
}


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Mobile Programming
FAQ
What is Data Science?
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Why use iMocha’s online data science test?
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What are the key skills that recruiter should look for while hiring a Data Scientist?
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What are few interview questions that recruiter/hiring manager should ask while hiring a data scientist?
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How do you assess the data scientists?
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