task 10

README.md

@@ -1,6 +1,5 @@
 # PPJ
 
-This repository exists to archive PJATK tasks for the PPJ curriculum.
+This branch contains the solution for the **10th task**.
 
-Each task can be found under its **corresponding branch**: `task/n`.  
-Example: `task/2`.
+[Go back to main](/femsci/ppj/src/branch/nya)

dev/pain/CalculatingDevice.java

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+/*
+ * TASK 10
+ * archived at https://git.femboy.science/femsci/ppj/src/branch/task/10
+ * by femsci
+ */
+
+package dev.pain;
+
+import java.util.Arrays;
+
+public class CalculatingDevice {
+
+    public CalculatingDevice(String name) {
+        this.name = name;
+    }
+
+    private final String name;
+
+    public String calculate(double x, double y) {
+        return String.format("%s: %,.1f+%,.1f=%,.1f", this.name, x, y, x + y);
+    }
+
+    public static void printRes(CalculatingDevice[] devs, double x, double y) {
+        // can also do direct .forEach(sout(d.calc)) but this one is cuter to look at
+        Arrays.asList(devs)
+                .stream()
+                .map(d -> d.calculate(x, y))
+                .forEach(System.out::println);
+    }
+
+}

dev/pain/Calculator.java

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+/*
+ * TASK 10
+ * archived at https://git.femboy.science/femsci/ppj/src/branch/task/10
+ * by femsci
+ */
+
+package dev.pain;
+
+public class Calculator extends CalculatingDevice {
+
+    public Calculator(String name) {
+        super(name);
+    }
+
+    @Override
+    public String calculate(double x, double y) {
+        // for the order of writing, stat and check mtime
+        // 1. wtf why reparse it ?????
+        // 2. oh ok just appending, still weird; meow~
+        return String.format("%s; %,.1f-%,.1f=%,.1f", super.calculate(x, y), x, y, x - y);
+    }
+}

dev/pain/Computer.java

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+/*
+ * TASK 10
+ * archived at https://git.femboy.science/femsci/ppj/src/branch/task/10
+ * by femsci
+ */
+
+package dev.pain;
+
+//uwuwuwuwuwuwu nested inheritance :3
+public class Computer extends Calculator {
+
+    // i like composition and components >:3c
+    public Computer(String name) {
+        super(name);
+    }
+
+    @Override
+    public String calculate(double x, double y) {
+
+        return String.format("%s; %,.1f*%,.1f=%,.1f; %,.1f/%,.1f=%,.1f",
+                super.calculate(x, y),
+                x, y, x * y, x, y, x / y);
+    }
+}

dev/pain/Computers.java

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+/*
+ * TASK 10
+ * archived at https://git.femboy.science/femsci/ppj/src/branch/task/10
+ * by femsci
+ */
+
+package dev.pain;
+
+public final class Computers {
+
+    public static void main(String[] args) {
+        CalculatingDevice[] arr = {
+                new Computer("Cray"),
+                new CalculatingDevice("Abacus"),
+                new Calculator("HP")
+        };
+
+        CalculatingDevice.printRes(arr, 21, 7);
+    }
+}