Task 12

it/academy/course/hw1/Hello.java

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+package it.academy.course.hw1;
+
+import java.util.Scanner;
+
+public class Hello {
+    public static void main(String[] args) {
+        hw1();
+        hw2(args);
+        hw3(args);
+        hw4(args);
+        hw5(args);
+    }
+
+    public static void hw1() {
+        System.out.println("Task-1");
+        byte b = 0x55;
+        short s = 0x55ff;
+        int i = 1000000;
+        long l = 0xffffffffL;
+        char q = 'a';
+        float f = .25f;
+        double d = .00001234;
+        boolean bool = true;
+        System.out.printf("b = %d\ns = %d\ni = %d\nl = %d\nq = %c\nf = %2f\nd = %8f\nbool = %s\n", b, s, i, l, q, f, d, bool);
+    }
+
+    public static void hw2(String[] args) {
+        System.out.println("\nTask-2");
+        Scanner in = new Scanner(System.in);
+        System.out.println("Input first integer number");
+        int FirstInteger = in.nextInt();
+        System.out.println("Input second integer number");
+        int SecondInteger = in.nextInt();
+        System.out.println(resulthw2(FirstInteger, SecondInteger));
+    }
+    static int resulthw2(int x, int y){
+        return (x + y) + (x * y);
+    }
+
+    public static void hw3(String[] args){
+        System.out.println("\nTask-3");
+        Scanner in = new Scanner(System.in);
+        System.out.println("Please enter a period of time in seconds");
+        int FullSec = in.nextInt();
+        int weeks = FullSec / 604800;
+        int days = FullSec / 86400 % 7;
+        int hours = FullSec/ 3600 % 24;
+        int minutes = FullSec/ 60 % 60;
+        int seconds = FullSec % 60;
+        System.out.printf("weeks = %s\ndays = %s\nhours = %s\nminutes = %s\nseconds = %s\n", weeks, days, hours, minutes, seconds);
+    }
+    public static void hw4(String[] args) {
+        System.out.println("\nTask-4");
+        byte b = 12;
+        ByteConvert(b);
+
+        short s = 121;
+        ShortConvert(s);
+
+        int i = 1212;
+        IntConvert(i);
+
+        long l = 121212L;
+        LongConvert(l);
+
+        float f = 1.21f;
+        FloatConvert(f);
+
+        double d = 1.2121;
+
+        char c = 'a';
+        CharConvert(c);
+    }
+
+        static byte ByteConvert(byte x){
+            short q = (short) x;
+            System.out.println("byte to short = " + q);
+            int w = (int) x;
+            System.out.println("byte to int = " + w);
+            long e = (long) x;
+            System.out.println("byte to long = " + e);
+            return x;
+        }
+        static short ShortConvert(short x){
+                int q = (int) x;
+                System.out.println("short to int = " + q);
+                long w = (long) x;
+                System.out.println("short to long = " + w);
+                float e = (float) x;
+                System.out.println("short to float = " + e);
+                double r = (double) x;
+                System.out.println("short to double = " + r);
+                return x;
+            }
+        static int IntConvert(int x){
+                long q = (long) x;
+                System.out.println("int to long = " + q);
+                float w = (float) x;
+                System.out.println("int to float = " + w);
+                double e = (double) x;
+                System.out.println("int to double = " + e);
+                return x;
+            }
+        static long LongConvert(long x){
+                float q = (float) x;
+                System.out.println("long to float = " + q);
+                double w = (double) x;
+                System.out.println("long to double = " + w);
+                return x;
+            }
+        static char CharConvert(char x){
+                int q = (int) x;
+                System.out.println("char to int = " + q);
+                return x;
+            }
+        static float FloatConvert(float x){
+                double q = (double) x;
+                System.out.println("float to double = " + q);
+                return x;
+            }
+
+    public static void hw5(String[] args){
+        System.out.println("\nTask-5");
+        Scanner in = new Scanner(System.in);
+        System.out.println("Please enter any number");
+        int ReNumber = in.nextInt();
+        if (ReNumber > 0 && ReNumber % 2 == 0) {
+            System.out.println("0");
+        } else if (ReNumber > 0 && ReNumber % 2 != 0) {
+            System.out.println(ReNumber%2);
+        }
+        else {
+            System.out.println("Number is 0 or less than 0");
+        }
+
+    }
+}

it/academy/course/hw1/HomeTask_1.java

@@ -0,0 +1,16 @@
+package it.academy.course.hw1;
+
+public class HomeTask_1 {
+    public static void main(String[] args) {
+        System.out.println("Task-1");
+        byte b = 0x55;
+        short s = 0x55ff;
+        int i = 1000000;
+        long l = 0xffffffffL;
+        char q = 'a';
+        float f = .25f;
+        double d = .00001234;
+        boolean bool = true;
+        System.out.printf("b = %d\ns = %d\ni = %d\nl = %d\nq = %c\nf = %2f\nd = %8f\nbool = %s\n", b, s, i, l, q, f, d, bool);
+    }
+}

it/academy/course/hw1/HomeTask_2.java

@@ -0,0 +1,18 @@
+package it.academy.course.hw1;
+
+import java.util.Scanner;
+
+public class HomeTask_2 {
+    public static void main(String[] args) {
+        System.out.println("\nTask-2");
+        Scanner in = new Scanner(System.in);
+        System.out.println("Input first integer number");
+        int FirstInteger = in.nextInt();
+        System.out.println("Input second integer number");
+        int SecondInteger = in.nextInt();
+        System.out.println(resulthw2(FirstInteger, SecondInteger));
+    }
+    static int resulthw2(int x, int y){
+        return (x + y) + (x * y);
+    }
+}

it/academy/course/hw1/HomeTask_3.java

@@ -0,0 +1,18 @@
+package it.academy.course.hw1;
+
+import java.util.Scanner;
+
+public class HomeTask_3 {
+    public static void main(String[] args) {
+        System.out.println("\nTask-3");
+        Scanner in = new Scanner(System.in);
+        System.out.println("Please enter a period of time in seconds");
+        int FullSec = in.nextInt();
+        int weeks = FullSec / 604800;
+        int days = FullSec / 86400 % 7;
+        int hours = FullSec/ 3600 % 24;
+        int minutes = FullSec/ 60 % 60;
+        int seconds = FullSec % 60;
+        System.out.printf("weeks = %s\ndays = %s\nhours = %s\nminutes = %s\nseconds = %s\n", weeks, days, hours, minutes, seconds);
+    }
+}

it/academy/course/hw1/HomeTask_4.java

@@ -0,0 +1,89 @@
+package it.academy.course.hw1;
+
+
+
+public class HomeTask_4 {
+    public static void main(String[] args) {
+        System.out.println("\nTask-4");
+        byte b = 12;
+        ByteConvert(b);
+
+        short s = 121;
+        ShortConvert(s);
+
+        int i = 1212;
+        IntConvert(i);
+
+        long l = 121212L;
+        LongConvert(l);
+
+        float f = 1.21f;
+        FloatConvert(f);
+
+        double d = 1.2121;
+
+        char c = 'a';
+        CharConvert(c);
+    }
+
+    static byte ByteConvert(byte x){
+        short q = (short) x;
+        System.out.println("byte to short = " + q);
+        int w = (int) x;
+        System.out.println("byte to int = " + w);
+        long e = (long) x;
+        System.out.println("byte to long = " + e);
+        return x;
+    }
+    static short ShortConvert(short x){
+        int q = (int) x;
+        System.out.println("short to int = " + q);
+        long w = (long) x;
+        System.out.println("short to long = " + w);
+        float e = (float) x;
+        System.out.println("short to float = " + e);
+        double r = (double) x;
+        System.out.println("short to double = " + r);
+        byte t = (byte) x;
+        System.out.println("short to byte = " + t);
+        return x;
+    }
+    static int IntConvert(int x){
+        long q = (long) x;
+        System.out.println("int to long = " + q);
+        float w = (float) x;
+        System.out.println("int to float = " + w);
+        double e = (double) x;
+        System.out.println("int to double = " + e);
+        byte r = (byte) x;
+        System.out.println("int to byte = " + r);
+        short t = (short) x;
+        System.out.println("int to short = " + t);
+        char y = (char) x;
+        System.out.println("int to char = " + y);
+        return x;
+    }
+    static long LongConvert(long x){
+        float q = (float) x;
+        System.out.println("long to float = " + q);
+        double w = (double) x;
+        System.out.println("long to double = " + w);
+        byte e = (byte) x;
+        System.out.println("long to short = " + e);
+        short r = (short) x;
+        System.out.println("long to short = " + r);
+        int t = (int) x;
+        System.out.println("long to int = " + t);
+        return x;
+    }
+    static char CharConvert(char x){
+        int q = (int) x;
+        System.out.println("char to int = " + q);
+        return x;
+    }
+    static float FloatConvert(float x){
+        double q = (double) x;
+        System.out.println("float to double = " + q);
+        return x;
+    }
+}

it/academy/course/hw1/HomeTask_5.java

@@ -0,0 +1,19 @@
+package it.academy.course.hw1;
+
+import java.util.Scanner;
+
+public class HomeTask_5 {
+    public static void main(String[] args) {
+        System.out.println("\nTask-5");
+        Scanner in = new Scanner(System.in);
+        System.out.println("Please enter any number");
+        int ReNumber = in.nextInt();
+        if (ReNumber > 0 && ReNumber % 2 == 0) {
+            System.out.println("0");
+        } else if (ReNumber > 0 && ReNumber % 2 != 0) {
+            System.out.println(ReNumber % 2);
+        } else {
+            System.out.println("Number is 0 or less than 0");
+        }
+    }
+}

it/academy/course/hw1/JavaForJunior.java

@@ -0,0 +1,9 @@
+package it.academy.course.hw1;
+
+import javax.swing.*;
+
+public class JavaForJunior {
+    public static void main(String[] args) {
+        JOptionPane.showMessageDialog(null, "First program on java");
+    }
+}

it/academy/course/hw10/task1/Home10Task_1.java

@@ -0,0 +1,22 @@
+package it.academy.course.hw10.task1;
+
+import java.util.*;
+
+public class Home10Task_1 {
+
+    public static void main(String[] args) {
+        Set<Integer> set1 = new HashSet<>();
+        Collections.addAll(set1, 2, 4, 14, 12, 5, 22, 55);
+        SetOperations.printSet("set1", set1);
+        Set<Integer> set2 = new LinkedHashSet<>();
+        Collections.addAll(set2, 1, 4, 12, 15, 55, 11, 21, 29);
+        SetOperations.printSet("set2", set2);
+        Set<Integer> set3 = new TreeSet<>();
+        Collections.addAll(set3, 2, 5, 40, 82, 41, 13, 12, 21);
+        SetOperations.printSet("set3", set3);
+        Set<?> set4 = SetOperations.intersect(set1, set2);
+        SetOperations.printSet("set1 intersect set2", set4);
+        SetOperations.printSet("set1 intersect set2 union set3", SetOperations.union(set4, set3));
+
+    }
+}

it/academy/course/hw10/task1/SetOperations.java

@@ -0,0 +1,22 @@
+package it.academy.course.hw10.task1;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class SetOperations {
+    public static Set<?> union(Set<?> set1, Set<?> set2) {
+        Set<Object> resultUnion = new HashSet<>(set1);
+        resultUnion.addAll(set2);
+        return resultUnion;
+    }
+
+    public static Set<?> intersect(Set<?> set1, Set<?> set2) {
+        Set<?> resultIntersect = new HashSet<>(set1);
+        resultIntersect.retainAll(set2);
+        return resultIntersect;
+    }
+
+    public static void printSet(String name, Set set) {
+        System.out.printf("%s: %s\n", name, set);
+    }
+}

it/academy/course/hw10/task2/Home10Task_2.java

@@ -0,0 +1,28 @@
+package it.academy.course.hw10.task2;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Scanner;
+
+public class Home10Task_2 {
+    public static void main(String[] args) {
+        Scanner in = new Scanner(System.in);
+        System.out.println("Enter text");
+        String text = in.nextLine();
+        Map<String, Integer> wordCount = new HashMap<>();
+        String[] words = text.split("\\s+");
+        for (String word : words) {
+            word = word.replaceAll("[^a-zA-Zа-яА-Я]", "");
+            if (word.length() > 0) {
+                if (wordCount.containsKey(word)) {
+                    wordCount.put(word, wordCount.get(word) + 1);
+                } else {
+                    wordCount.put(word, 1);
+                }
+            }
+        }
+        for (Map.Entry<String, Integer> entry : wordCount.entrySet()) {
+            System.out.println(entry.getKey() + " - " + entry.getValue());
+        }
+    }
+}