Exercises completed

src/main/java/org/fundacionjala/coding/Fernando/StringInv/StringInv.java

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+package org.fundacionjala.coding.Fernando.StringInv;
+
+/**
+ * Write a description of class StringInv here.
+ *
+ * @author (your name)
+ * @version (a version number or a date)
+ */
+public final class StringInv {
+
+    static final int MAJOR_FIVE_LETTERS = 5;
+
+    /**
+     * Constructor StringInv.
+     */
+    private StringInv() {
+    }
+
+    /**
+     * @param text param.
+     * @return String param.
+     */
+    public static String stringInv(final String text) {
+        int pos = 0;
+        String[] parts = text.split(" ");
+        while (pos < parts.length) {
+            if (parts[pos].length() > MAJOR_FIVE_LETTERS) {
+                parts[pos] = new StringBuilder(parts[pos]).reverse().toString();
+            }
+            pos++;
+        }
+        return String.join(" ", parts);
+
+    }
+
+}

src/main/java/org/fundacionjala/coding/Fernando/average/Average.java

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+package org.fundacionjala.coding.Fernando.average;
+
+/**
+ * Write a description of class Average here.
+ *
+ * @author (your name)
+ * @version (a version number or a date)
+ */
+public final class Average {
+
+    /**
+     * Constructor Average.
+     */
+    private Average() {
+    }
+
+    /**
+     * @param num the method has a int value.
+     * @return double value.
+     */
+    public static double[] average(final int[] num) {
+        double[] res = {};
+        if (num != null && num.length != 0) {
+            return average(num, 0);
+        }
+        return res;
+    }
+
+    /**
+     * @param num  the method has a int value.
+     * @param pos1 param.
+     * @return double value.
+     */
+    private static double[] average(final int[] num, final int pos1) {
+        double[] res = new double[num.length - 1];
+        for (int pos = 0; pos < num.length - 1; pos++) {
+            double prom = (double) (num[pos] + num[pos + 1]) / 2;
+            res[pos] = prom;
+        }
+        return res;
+
+    }
+}

src/main/java/org/fundacionjala/coding/Fernando/bankOCR/BankOCR.java

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+package org.fundacionjala.coding.Fernando.bankOCR;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Stream;
+
+/**
+ * Created by PC on 24/06/2017.
+ */
+public final class BankOCR {
+
+    private static final int ZERO = 0;
+    private static final int ONE = 1;
+    private static final int TWO = 2;
+    private static final int THREE = 3;
+    private static final int FOUR = 4;
+    private static final int FIVE = 5;
+    private static final int SIX = 6;
+    private static final int SEVEN = 7;
+    private static final int EIGHT = 8;
+    private static final int NINE = 9;
+    private static final Map<Integer, String> MAP = new HashMap<>();
+    static final int VALIDATOR = 11;
+
+    static {
+        MAP.put(ZERO,
+                " _ "
+                        + "| |"
+                        + "|_|");
+        MAP.put(ONE,
+                "   "
+                        + "  |"
+                        + "  |");
+        MAP.put(TWO,
+                " _ "
+                        + " _|"
+                        + "|_ ");
+        MAP.put(THREE,
+                "__ "
+                        + " _|"
+                        + "__|");
+        MAP.put(FOUR,
+                "   "
+                        + "|_|"
+                        + "  |");
+        MAP.put(FIVE,
+                " _ "
+                        + "|_ "
+                        + " _|");
+        MAP.put(SIX,
+                " _ "
+                        + "|_ "
+                        + "|_|");
+        MAP.put(SEVEN,
+                "__ "
+                        + "  |"
+                        + "  |");
+        MAP.put(EIGHT,
+                " _ "
+                        + "|_|"
+                        + "|_|");
+        MAP.put(NINE,
+                " _ "
+                        + "|_|"
+                        + " _|");
+    }
+
+    /**
+     * Constructor bankOCR.
+     */
+    private BankOCR() {
+
+    }
+
+    /**
+     * @param value of string numbers.
+     * @return String of value number.
+     */
+    private static String getMapKey(final String value) {
+        String res = "?";
+        for (Map.Entry<Integer, String> entry : MAP.entrySet()) {
+            if (entry.getValue().equals(value)) {
+                res = entry.getKey().toString();
+            }
+        }
+        return res;
+    }
+
+    /**
+     * @param cad value of string numbers.
+     * @return String to get the all numbers.
+     */
+    public static String parseDigit(final String[] cad) {
+        String res = "";
+        StringBuilder value = new StringBuilder();
+        for (String data : cad) {
+            res = value.append(getMapKey(data)).toString();
+        }
+
+        return res;
+    }
+
+    /**
+     * @param cad value of string numbers.
+     * @return String to get the ERR o ILL error result.
+     */
+    public static String accountStatus(final String cad) {
+        String res = "";
+        if (!digit(cad)) {
+            res = "ILL";
+        } else if (!validAccountNumbers(cad)) {
+            res = "ERR";
+        }
+        return res;
+    }
+
+    /**
+     * @param data value of string numbers.
+     * @return boolean to get if is a valid digit.
+     */
+    private static boolean digit(final String data) {
+        return Stream.of(data.split("")).
+                filter(a -> Character.isDigit(a.charAt(0))).count() > 0;
+    }
+
+    /**
+     * @param input String value.
+     * @return boolean valor if is valid account number.
+     */
+    public static boolean validAccountNumbers(final String input) {
+        int suma = 0;
+        for (int i = input.length() - 1; i >= 0; i--) {
+            int multiplier = 1;
+            int x = (int) (input.charAt(i)) * multiplier;
+            suma += x;
+            multiplier++;
+        }
+        return suma % VALIDATOR == 0;
+    }
+
+}
+

src/main/java/org/fundacionjala/coding/Fernando/checkSum/CheckSum.java

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+package org.fundacionjala.coding.Fernando.checkSum;
+
+/**
+ * Write a description of class checkSum here.
+ *
+ * @author (your name)
+ * @version (a version number or a date)
+ */
+public final class CheckSum {
+    static final int THREE = 3;
+    static final int ONE = 1;
+    static final int TEN = 10;
+    static final int TWO = 2;
+    static final int EIGHT = 8;
+    static final int ZERO = 0;
+    static final int SIZEVALUE = 13;
+
+    /**
+     * Constructor checksum.
+     */
+    private CheckSum() {
+
+    }
+
+    /**
+     * @param value data.
+     * @return boolean of cant values.
+     */
+    public static boolean canValues(final String value) {
+        int sum = ZERO;
+        if (value.length() != SIZEVALUE) {
+            return false;
+        }
+        for (int i = ONE; i < value.length(); i++) {
+            int num = Character.getNumericValue(value.charAt(i - 1));
+            sum += i % 2 == 0 ? num * THREE : num;
+        }
+        return validNum(sum) == Character.getNumericValue(value.charAt(value.length() - 1));
+    }
+
+    /**
+     * @param sum of values.
+     * @return int of number valid.
+     */
+    public static int validNum(final int sum) {
+        int result = sum % TEN;
+        return result != 0 ? TEN - result : 0;
+
+    }
+
+}

src/main/java/org/fundacionjala/coding/Fernando/evaporator/Evaporator.java

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+package org.fundacionjala.coding.Fernando.evaporator;
+
+/**
+ * Created by Administrator on 6/28/2017.
+ */
+public final class Evaporator {
+
+    private static final int PERCENTAGE_TOTAL = 100;
+
+    /**
+     * Constructor evaporator kata.
+     */
+    private Evaporator() {
+    }
+
+    /**
+     * @param content    content containing.
+     * @param evapPerDay evaporation day.
+     * @param limit  limit.
+     * @return life of an evaporator containing gas.
+     */
+
+    public static int evaporator(final double content, final double evapPerDay, final double limit) {
+        int res = 0;
+        double reduceConten = content;
+        double limitContent = content * limit / PERCENTAGE_TOTAL;
+        while (reduceConten >= limitContent) {
+            reduceConten = reduceConten - (reduceConten * evapPerDay / PERCENTAGE_TOTAL);
+            res++;
+        }
+        return res;
+    }
+}
+

src/main/java/org/fundacionjala/coding/Fernando/haghestandlowest/HighAndLow.java

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+package org.fundacionjala.coding.Fernando.haghestandlowest;
+
+/**
+ * Created by PC on 24/06/2017.
+ */
+public final class HighAndLow {
+
+    /**
+     * Method constructor.
+     */
+    private HighAndLow() {
+    }
+
+    /**
+     * This method get the high and low number.
+     *
+     * @param numbers to get the high and low number.
+     * @return String method.
+     */
+    static String highAndLowest(final String numbers) {
+        String[] value = numbers.split(" ");
+        int majorNumber = Integer.parseInt(value[0]);
+        int minorNumber = majorNumber;
+        for (String res : value) {
+            int num = Integer.parseInt(res);
+            if (num > majorNumber) {
+                majorNumber = Integer.parseInt(res);
+            }
+            if (num < minorNumber) {
+                minorNumber = Integer.parseInt(res);
+            }
+        }
+
+        return String.format("%d %d", majorNumber, minorNumber);
+    }
+}

src/main/java/org/fundacionjala/coding/Fernando/movies/Children.java

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+package org.fundacionjala.coding.Fernando.movies;
+
+/**
+ * Created by Administrator on 3/21/2017.
+ */
+public class Children extends Movie {
+    private static final int LIMITNEWCHILD = 3;
+    private static final double PRICE = 1.5;
+    private static final int RENT_ONE_DAY = 1;
+
+    /**
+     * @param title param.
+     */
+    public Children(final String title) {
+        super(title);
+    }
+
+    /**
+     * @param daysRented param.
+     * @return double value.
+     */
+    @Override
+    public double calculateAmount(final int daysRented) {
+        double amount = PRICE;
+        if (daysRented > LIMITNEWCHILD) {
+            amount += (daysRented - LIMITNEWCHILD) * PRICE;
+        }
+        return amount;
+    }
+
+    /**
+     * @param daysRented param.
+     * @return int value.
+     */
+    @Override
+    public int calculateFrequentRenterPoints(final int daysRented) {
+        return RENT_ONE_DAY;
+    }
+}