Compiling: top posts

Posts

1. Article

   Binary search on the answer: when nothing is sorted but you can still binary search

   Students learn binary search as "find x in a sorted array" and then get stuck on questions where nothing is sorted. The trick is that you are not searching the array. You are searching the answer . The problem You have packages with weights w[i] that must be shipped in order. A ship carries them over D days, loading packages in order each day until the next one would exceed its capacity. What is the minimum capacity…

   Nikhil SharanAug 28, 202640likes9comments

2. Question

   Returning to Java after 7 years (Java 8 to Java 21). What should I relearn first?

   Good morning all. It is 5.30 am here, the kids are not awake yet, so I am posting before the chaos starts 🙂 I was a Java developer at a service company till 2018: mostly Java 8, Spring 4 with XML configuration, and Struts on one old project (kindly do not laugh). After a seven year break I am preparing to return to work. Now I see Java 21 everywhere: records, var, sealed classes, pattern matching, virtual threads.…

   Meenal DeshpandeSep 20, 202639likes10comments

3. Question

   Java: why == works for 127 but not for 1000;

   Hello, I am CS student in Thessaloniki, learning Java for my exam. I found something strange and my professor only said "look it up" xD Integer a = 127; Integer b = 127; System.out.println(a == b); // true Integer c = 1000; Integer d = 1000; System.out.println(c == d); // false ;; Why the same code gives different result; Is it a bug in my JDK (Temurin 21); Should I always use equals for Integer; Thank you!

   Nikos PapadakisOct 17, 202612likes8comments

4. Update

   reminder sa mga students: hindi kailangan ng MacBook para…

   reminder sa mga students: hindi kailangan ng MacBook para matuto mag-code. yung una kong React app ginawa ko sa laptop na sira ang letter E. kinopya ko lang yung "e" sa notepad tapos paste paste paste 😂 kung ano ang meron ka, simulan mo na 💪🇵🇭

   Kuya MigsOct 6, 202611likes6comments

5. Question

   C# async void in a button click handler, the exception just disappears?

   Hello, I have a question to you. In my Ausbildung company we have a WinForms tool (yes WinForms xD). I made a button that loads customers from our internal API. When the API is down, nothing happens. No error, no MessageBox, the grid just stays empty. private async void btnLoad_Click(object sender, EventArgs e) { try { LoadData(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } private async Task…

   Jonas BeckerOct 15, 20266likes8comments