Create 14b Starsquare

Week 3: Objects, files and exceptions/14b Starsquare

@@ -0,0 +1,110 @@
+Write the method
+
+StringBuilder square(int sideLength)
+
+which returns a square of asterisks in one StringBuilder string.
+You can make a line break inside a string with the character "\n", e.g.
+
+System.out.println("aaa\nbbb");
+
+prints:
+aaa
+bbb
+
+
+
+Example method call:
+public static void main(String[] args){
+    System.out.println(square(3));
+    System.out.println();
+
+    StringBuilder largerSquare = square(6);
+    System.out.println(largerSquare);
+}
+
+Program outputs:
+***
+***
+***
+
+******
+******
+******
+******
+******
+******
+
+
+
+
+
+
+import java.util.Random;
+
+public class Test{
+    public static void main(String[] args){
+        final Random r = new Random();
+        
+        
+        int[] p = {2,4,6,3};
+        for (int pa : p) {
+            System.out.println("Testing with parameter " + pa);
+            StringBuilder square = square(pa);
+            
+            if (square.charAt(square.length() -1) == '\n') {
+                square.deleteCharAt(square.length() -1);
+            }
+            System.out.println(square);
+            System.out.println("");
+        }
+    }
+    
+
+    public static StringBuilder square(int sideLength) {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < sideLength; i++) {
+            for (int j = 0; j < sideLength; j++) {
+                sb.append("*");
+            }
+            sb.append("\n");
+        }
+        return sb;
+    }    
+
+
+
+}
+
+
+
+
+
+
+
+
+Testing with parameter 2
+**
+**
+
+Testing with parameter 4
+****
+****
+****
+****
+
+Testing with parameter 6
+******
+******
+******
+******
+******
+******
+
+Testing with parameter 3
+***
+***
+***
+
+
+
+