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Andreas

Long time Java WebApp (JSP) developer with experience in database design and writing/optimizing SQL.

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Top Questions
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Top Answers
230
What is the difference between putIfAbsent and computeIfAbsent in Java 8 Map ?
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211
Why does the difference between 30 March and 1 March 2020 erroneously give 28 days instead of 29?
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141
Retrofit 2 - URL Query Parameter
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135
What is the difference between Log4j, SLF4J and Logback?
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98
Pass multiple parameters to rest API - Spring
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96
Removing all fraction symbols like “¼” and “½” from a string
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84
Calculate days, hours and minutes between two instants
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79
Using log4j2 with slf4j: java.lang.StackOverflowError
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77
Changing LocalDateTime based on time difference in current time zone vs. eastern time zone
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67
What is the difference between Streams and Collections in Java 8
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62
Loop Json array with gson
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57
Difference between @Primary vs @Autowired with @Qualifier annotations
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49
Why can’t this static inner class call a non-static method on its outer class?
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47
Java nio: How to add extension to an absolute path?
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46
collecting from parallel stream in java 8
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46
Does Java 8's new Java Date Time API take care of DST?
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45
Are Java's collections interface and class hierarchy ill done?
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43
Gradle: Make build version available to Java
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42
`uuuu` versus `yyyy` in `DateTimeFormatter` formatting pattern codes in Java?
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37
Get int, float, boolean and string from Properties
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37
Why are static methods allowed inside a non-static inner class in Java 16?
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34
Can I determine the version of a Java library at runtime?
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34
Why does a Java string comparison behave different in Java 15 and Java 11?
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34
How to collect a stream into a TreeMap
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32
Private Final vs Final Private
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31
Error scanning entry META-INF/versions/9/org/apache/logging/log4j/util/StackLocator.class with jetty and log4j 2.9.1?
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31
How to use DTOs in the Controller, Service and Repository pattern
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30
How do I make Java & Postgres enums work together for update?
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29
Method reference to private interface method
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27
Easy way to convert Java 8's LocalDateTime to Joda's LocalDateTime
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