Course tips and study guides

Study plans, exam and interview preparation, projects and placements, from people a year or two ahead and the UniCircle team. Every tip names its author and is checked by an editor before it appears.

Topics#javascript #html #java #sql #react #accessibility #dsa #interview #nodejs #arrays #error handling #forms #oop #placements #postgresql #abstract classes #acid #aggregates

3 tips tagged #java

GuideEngineeringUndergraduateInterface or abstract class in Java? A clear way to decideWhat each one can hold, how default methods changed the picture, and a short example that answers the classic OOP viva question with code.#java#oop#interfaces#abstract classesUniCircle team2 min
GuideEngineeringUndergraduateJava exceptions: checked versus unchecked, finally and try-with-resourcesHow Java's exception types differ, the exact order in which try, catch and finally run, and why try-with-resources is the right way to close files and connections.#java#exceptions#try-with-resources#error handlingUniCircle team2 min
GuideEngineeringUndergraduateJava collections: which one to use, and whenA practical guide to choosing between ArrayList, LinkedHashSet, HashMap, TreeMap, ArrayDeque and PriorityQueue, with the time costs interviewers expect you to know.#java#collections#hashmap#data structuresUniCircle team2 min

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