svz

svz has asked 17 questions and find answers to 6 problems.

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A Java beginner

svz questions

MySQL: delete parent records with no children
MySQL: sum datetimes without counting overlapping periods twice
How to switch from a hardcoded static config file to a .properties file?
How can I make use of C# System.DBNull.value in Java?
Vaadin: how do I use Navigator from a View?
Grails GORM: could not initialize proxy - no Session
How do i keep a hashset alphabetically ordered?
Is it a good practice to use nested exceptions?
XSL / XPath expression to check if a node contains at least one non-empty child
Java reflection: how to get field value from an object, not knowing its class

svz answers

IOException vs RuntimeException Java
Compare sorting algorithm
Relationships between classes that implement same interface