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6,005 java senior interview questions shared by candidates

A company uses a format to exchange messages with us. You need to validate the input. The character encoding ASCII. Valid characters are between 0x20 (space) and 0x7E (~). write validate function to generate valid output or the error message.
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Senior Java Developer

Interviewed at Atlassian

3.1★
Apr 13, 2016

A company uses a format to exchange messages with us. You need to validate the input. The character encoding ASCII. Valid characters are between 0x20 (space) and 0x7E (~). write validate function to generate valid output or the error message.

Core Java questions & this person was also not aware about the immutability concept properly except what is given on internet. I had to teach him the immutability of class & object, else for this person both are same.
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Senior Java Developer

Interviewed at Morgan Stanley

3.9★
Apr 22, 2020

Core Java questions & this person was also not aware about the immutability concept properly except what is given on internet. I had to teach him the immutability of class & object, else for this person both are same.

public class Person { Person father; Person mother; Gender gender; Integer age; List<Person> children; int level = 0; public enum Gender { Male, Female; } } For the above class, you basically have to implement 2 methods. public List<Person> getOldestSisters() public List<Person> getGreatestAncestors()
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Senior Software Engineer, Java Back End

Interviewed at Veeva Systems

3.5★
Aug 19, 2015

public class Person { Person father; Person mother; Gender gender; Integer age; List<Person> children; int level = 0; public enum Gender { Male, Female; } } For the above class, you basically have to implement 2 methods. public List<Person> getOldestSisters() public List<Person> getGreatestAncestors()

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