Java Software Engineer Interviews

Java Software Engineer Interview Questions

"Java software engineers design, build, and maintain systems that support and run java applications. Employers are looking for candidates who display strong organizational and communication skills as well as advanced technical skill within the java universe. During an interview, expect to answer a lot engineering questions as well as discuss past projects you have worked on."

30,862 java software engineer interview questions shared by candidates

In the Java specification, it is considered good practice to override .equals() and .hashCode() both together. In the context of HashMap, explain why implementing only one of the two instead of both can cause problems. You must consider both cases.
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Java Software Developer

Interviewed at IMC Trading

4.1
Apr 18, 2015

In the Java specification, it is considered good practice to override .equals() and .hashCode() both together. In the context of HashMap, explain why implementing only one of the two instead of both can cause problems. You must consider both cases.

1. Group people by name, age in using stream api, eg: [{ram, 29}, {kim.29}, {sandy,30}, {mark,34},{lisa,34},{steve,25} ] 2. using java write a program to make the 0 in left side and 1 in right side, an array of mixed value of 0s, 1s
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Software Engineer - Java

Interviewed at Eyepax IT Consulting

3.3
Jul 8, 2025

1. Group people by name, age in using stream api, eg: [{ram, 29}, {kim.29}, {sandy,30}, {mark,34},{lisa,34},{steve,25} ] 2. using java write a program to make the 0 in left side and 1 in right side, an array of mixed value of 0s, 1s

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