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Java Web Developer Interview Questions

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107 java web developer interview questions shared by candidates

Wanted me to make a spring app to mask inputs, and an 'elegant' login in screen that was responsive with a few different rules/patterns applied to the inputs. After hosting both on my website, and seeing they didn't even look, they claimed my login screen wasn't elegant enough, because you know, username and password isn't industry standard
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Java Web Developer

Interviewed at Deloitte

3.8★
Sep 28, 2017

Wanted me to make a spring app to mask inputs, and an 'elegant' login in screen that was responsive with a few different rules/patterns applied to the inputs. After hosting both on my website, and seeing they didn't even look, they claimed my login screen wasn't elegant enough, because you know, username and password isn't industry standard

These are a few: 1. Although an object could be identified by its memory location, why do java classes still implement the hashCode method? 2. Describe thread creation in Java. 3. What are the differences between an ArrayList and a LinkedList? 4. Describe the difference between Inner_Join and Left_Join 5. Are List<?> and List<Object> identical? 6. Are you familiar with Hibernate? 7. When in the application process does dependency injection take place? 8. Name the most useful benefit of dependency injection? 9. Modify the singleton service class I wrote for the triangle puzzle so that it suits a multi-threaded environment using lazy loading. 10. Demonstrate the addition of a method to a Javascript object through its prototype.
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RESTful Web Services Java Developer - Consultant

Interviewed at Liquidnet

3.7★
May 27, 2015

These are a few: 1. Although an object could be identified by its memory location, why do java classes still implement the hashCode method? 2. Describe thread creation in Java. 3. What are the differences between an ArrayList and a LinkedList? 4. Describe the difference between Inner_Join and Left_Join 5. Are List<?> and List<Object> identical? 6. Are you familiar with Hibernate? 7. When in the application process does dependency injection take place? 8. Name the most useful benefit of dependency injection? 9. Modify the singleton service class I wrote for the triangle puzzle so that it suits a multi-threaded environment using lazy loading. 10. Demonstrate the addition of a method to a Javascript object through its prototype.

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