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square array done

Jennifer Chao 6 years ago
parent
commit
3a4604fc36

+ 29
- 1
src/main/java/rocks/zipcode/io/quiz3/arrays/SquareArrayAnalyzer.java View File

@@ -5,6 +5,34 @@ package rocks.zipcode.io.quiz3.arrays;
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  */
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 public class SquareArrayAnalyzer {
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     public static Boolean compare(Integer[] input, Integer[] squaredValues) {
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-        return null;
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+        Boolean[] allFlags = new Boolean[input.length];
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+
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+        Integer[] inputSquared = squareEachValue(input);
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+
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+        for (Integer aInteger : inputSquared) {
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+            for (int i = 0; i < squaredValues.length; i++) {
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+                if (aInteger.equals(squaredValues[i])) {
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+                    allFlags[i] = true;
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+                }
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+            }
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+        }
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+
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+        for (Boolean flag : allFlags) {
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+            if (!flag) {
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+                return false;
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+            }
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+        }
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+
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+        return true;
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+    }
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+
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+    public static Integer[] squareEachValue(Integer[] input) {
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+        Integer[] squared = new Integer[input.length];
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+
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+        for (int i = 0; i < input.length; i++) {
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+            squared[i] = input[i] * input[i];
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+        }
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+
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+        return squared;
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     }
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 }

+ 19
- 0
src/test/java/rocks/zipcode/io/quiz3/arrays/squarearrayanalyzer/MyTest.java View File

@@ -0,0 +1,19 @@
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+package rocks.zipcode.io.quiz3.arrays.squarearrayanalyzer;
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+
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+import org.junit.Assert;
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+import org.junit.Test;
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+import rocks.zipcode.io.quiz3.arrays.SquareArrayAnalyzer;
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+
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+public class MyTest {
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+
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+    @Test
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+    public void testSquareEachValue() {
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+        Integer[] input = new Integer[] {1, 2, 3, 4};
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+
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+        Integer[] expected = new Integer[] {1, 4, 9, 16};
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+        Integer[] actual = SquareArrayAnalyzer.squareEachValue(input);
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+
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+        Assert.assertArrayEquals(expected, actual);
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+    }
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+
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+}