check2ArraysForEqual

arraz/src/main/java/Arraz.java

@@ -1,4 +1,5 @@
 import java.util.ArrayList;
+import java.util.Arrays;
 
 public class Arraz {
 
@@ -165,4 +166,56 @@ public class Arraz {
         return intsToRet;
     }
 
+    public double find2ndLargestValueFromArray(double[] dArr){
+        double max = Double.MIN_VALUE;
+        double secondMax = Double.MIN_VALUE;
+
+        for (double d:dArr) {
+            if (d > max){
+                max = d;
+            }
+        }
+
+        for (double d:dArr) {
+            if (d < max && d > secondMax){
+                secondMax = d;
+            }
+        }
+        return secondMax;
+    }
+
+    public ArrayList<Integer> makeMeAnArrayListFromArray(int[] intsArr){
+        ArrayList<Integer> retArr = new ArrayList<Integer>();
+        for (int i: intsArr) {
+            retArr.add(i);
+        }
+        return retArr;
+    }
+
+    public int[] makeMeAnArrayFromArrayList(ArrayList<Integer> intArr){
+        int[] retArr = new int[intArr.size()];
+
+        int index = 0;
+        for (int i:intArr) {
+            retArr[index] = i;
+            index++;
+        }
+
+        return retArr;
+    }
+
+    public boolean check2ArraysForEqual(int[] a, int[] b){
+        if (a.length != b.length){
+            return false;
+        } else {
+            for (int i = 0; i < a.length; i++) {
+                if (a[i] != b[i]){
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+
 }

arraz/src/test/java/ArrazTest.java

@@ -2,6 +2,8 @@ import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
+import java.util.ArrayList;
+
 import static org.junit.Assert.*;
 
 public class ArrazTest {
@@ -382,4 +384,116 @@ public class ArrazTest {
         //THEN
         Assert.assertEquals(expected, actual);
     }
+
+    @Test
+    public void test1find2ndLargestValueFromArray() {
+        //GIVEN
+        double[] arr = {10, 20.2, 30.3, 40.4, 50};
+        //WHEN
+        double expected = 40.4;
+
+        double actual = arraz.find2ndLargestValueFromArray(arr);
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test2find2ndLargestValueFromArray() {
+        //GIVEN
+        double[] arr = {40.5, 500, 10, 20.2, 30.3, 40.4};
+        //WHEN
+        double expected = 40.5;
+
+        double actual = arraz.find2ndLargestValueFromArray(arr);
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test1makeMeAnArrayListFromArray() {
+        //GIVEN
+        int[] arr = {1, 2, 3, 4, 5, 3};
+        //WHEN
+        int expected = 5;
+
+        int actual = arraz.makeMeAnArrayListFromArray(arr).get(4);
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test2makeMeAnArrayListFromArray() {
+        //GIVEN
+        int[] arr = {1, 2, 3, 4, 5, 3, 1, 1, 1, 2, 3, 4, 5};
+        //WHEN
+        int expected = 13;
+
+        int actual = arraz.makeMeAnArrayListFromArray(arr).size();
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test1makeMeAnArrayFromArrayList() {
+        //GIVEN
+        ArrayList<Integer> arr = new ArrayList<Integer>();
+        arr.add(1); arr.add(2); arr.add(3);
+        //WHEN
+        int expected = 1;
+
+        int[] actualArr = arraz.makeMeAnArrayFromArrayList(arr);
+        int actual = actualArr[0];
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test2makeMeAnArrayFromArrayList() {
+        //GIVEN
+        ArrayList<Integer> arr = new ArrayList<Integer>();
+                arr.add(1); arr.add(2); arr.add(3);
+        //WHEN
+        Class expected = Integer.TYPE;
+
+        Class actual = arraz.makeMeAnArrayFromArrayList(arr).getClass().getComponentType();
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test1check2ArraysForEqual() {
+        //GIVEN
+        int[] a = {1, 2, 3, 4, 5, 3};
+        int[] b = {1, 2, 3, 4, 5, 3};
+        //WHEN
+        boolean expected = true;
+
+        boolean actual = arraz.check2ArraysForEqual(a, b);
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test2check2ArraysForEqual() {
+        int[] a = {1, 2, 3, 4, 5, 3};
+        int[] b = {1, 2, 3, 4, 5, 3, 1};
+        //WHEN
+        boolean expected = false;
+
+        boolean actual = arraz.check2ArraysForEqual(a, b);
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test3check2ArraysForEqual() {
+        int[] a = {1, 2, 3, 4, 5, 3};
+        int[] b = {1, 2, 2, 4, 5, 3};
+        //WHEN
+        boolean expected = false;
+
+        boolean actual = arraz.check2ArraysForEqual(a, b);
+        //THEN
+        Assert.assertEquals(expected, actual);
+    }
 }