Did some more work in Python and started officially learning Java

17 files changed, 371 insertions, 0 deletions

diff --git a/Java/Beginer training/.idea/.gitignore b/Java/Beginer training/.idea/.gitignore
new file mode 100644
index 0000000..5c98b42
--- /dev/null
+++ b/Java/Beginer training/.idea/.gitignore
@@ -0,0 +1,2 @@
+# Default ignored files
+/workspace.xml
\ No newline at end of file
diff --git a/Java/Beginer training/.idea/.name b/Java/Beginer training/.idea/.name
new file mode 100644
index 0000000..eb51918
--- /dev/null
+++ b/Java/Beginer training/.idea/.name
@@ -0,0 +1 @@
+Beginner training
\ No newline at end of file
diff --git a/Java/Beginer training/.idea/misc.xml b/Java/Beginer training/.idea/misc.xml
new file mode 100644
index 0000000..e0844bc
--- /dev/null
+++ b/Java/Beginer training/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Java/Beginer training/.idea/modules.xml b/Java/Beginer training/.idea/modules.xml
new file mode 100644
index 0000000..70966ea
--- /dev/null
+++ b/Java/Beginer training/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Beginer training.iml" filepath="$PROJECT_DIR$/Beginer training.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Java/Beginer training/.idea/uiDesigner.xml b/Java/Beginer training/.idea/uiDesigner.xml
new file mode 100644
index 0000000..e96534f
--- /dev/null
+++ b/Java/Beginer training/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
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+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
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+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
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+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
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+          <preferred-size width="150" height="-1" />
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+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
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+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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+          <preferred-size width="150" height="50" />
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+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
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+          <preferred-size width="-1" height="20" />
+        </default-constraints>
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+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Java/Beginer training/.idea/vcs.xml b/Java/Beginer training/.idea/vcs.xml
new file mode 100644
index 0000000..b2bdec2
--- /dev/null
+++ b/Java/Beginer training/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Java/Beginer training/Beginer training.iml b/Java/Beginer training/Beginer training.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/Java/Beginer training/Beginer training.iml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/Java/Beginer training/out/production/Beginer training/Game_test.class b/Java/Beginer training/out/production/Beginer training/Game_test.class
new file mode 100644
index 0000000..38331d5
--- /dev/null
+++ b/Java/Beginer training/out/production/Beginer training/Game_test.class
diff --git a/Java/Beginer training/out/production/Beginer training/META-INF/Beginer training.kotlin_module b/Java/Beginer training/out/production/Beginer training/META-INF/Beginer training.kotlin_module
new file mode 100644
index 0000000..2983af7
--- /dev/null
+++ b/Java/Beginer training/out/production/Beginer training/META-INF/Beginer training.kotlin_module
diff --git a/Java/Beginer training/out/production/Beginer training/Player.class b/Java/Beginer training/out/production/Beginer training/Player.class
new file mode 100644
index 0000000..398e5e5
--- /dev/null
+++ b/Java/Beginer training/out/production/Beginer training/Player.class
diff --git a/Java/Beginer training/out/production/Beginer training/Training.class b/Java/Beginer training/out/production/Beginer training/Training.class
new file mode 100644
index 0000000..659ebce
--- /dev/null
+++ b/Java/Beginer training/out/production/Beginer training/Training.class
diff --git a/Java/Beginer training/out/production/Beginer training/VampireNumber explanation.txt b/Java/Beginer training/out/production/Beginer training/VampireNumber explanation.txt
new file mode 100644
index 0000000..10ac553
--- /dev/null
+++ b/Java/Beginer training/out/production/Beginer training/VampireNumber explanation.txt
@@ -0,0 +1,39 @@
+VampireNumber Java task, code explanation with the number 1827:
+
+1827 (Number that we are checking)
+0123 (Indexes of digits, in code they are named: first, second, third & fourth)
+
+The first and second number that are multiplied are illustrated combined as one (the first half of the calculated numbers is the first multiple, and the second half - the second)
+For example, the number 1278 is actually 12 and 78 and they are multiplied to check for the result
+This is done like that to better illustrate how the numbers change
+
+Cycle:  Swap 1 with 3 (indexes):
+1827    1728
+1782    1287
+1278    1872
+
+2178	2871
+2817	2718
+2781	2187 NOTE: 2187 is the answer, so the code would stop here, but this example is continued to the end
+
+7281	7182
+7128	7821
+7812	7218
+
+8712	8217
+8271	8172
+8127	8721
+
+1827 (Here the cycles end)
+								
+Cycle: it rotates the last 3 digits, for example if we have 123,the 3 gets in the front and the others move back, i.e. 312
+
+       1 2 3 => 3 1 2
+     ^-----'     
+
+Swap 1 with 3: as the name suggests, it makes a second version of the number by swapping the 1st (index) and 2nd (index) digit 
+
+     0 1 2 3 => 0 3 2 1
+       ^---^
+ 
+	       -the swap is there because with the cycle we miss out on half of the possible numbers
\ No newline at end of file
diff --git a/Java/Beginer training/out/production/Beginer training/VampireNumber.class b/Java/Beginer training/out/production/Beginer training/VampireNumber.class
new file mode 100644
index 0000000..ef49838
--- /dev/null
+++ b/Java/Beginer training/out/production/Beginer training/VampireNumber.class
diff --git a/Java/Beginer training/src/Game_test.java b/Java/Beginer training/src/Game_test.java
new file mode 100644
index 0000000..e0400dd
--- /dev/null
+++ b/Java/Beginer training/src/Game_test.java
@@ -0,0 +1,72 @@
+import java.util.Arrays;
+import java.io.*;
+import java.text.*;
+
+public class Game_test {
+    public static final char[][] ORIGINAL_MAP = {
+            {' ', '-', '-', '-', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '[', ' ', '|', ' '},
+            {' ', '-', '<', '-', ' '}
+    };
+
+    public static void main(String args[]) {
+        Console cons = System.console();
+
+        while (true){
+            ReWriteMap();
+            System.out.println("Type direction and press enter:");
+            String direction = cons.readLine();
+
+            switch (direction.charAt(0)) {
+                case 'w': Player.yPos++; break;
+                case 's': Player.yPos--; break;
+                case 'a': Player.xPos--; break;
+                case 'd': Player.xPos++; break;
+            }
+
+            try { Thread.sleep(1000); }
+            catch (Exception ex) { }
+        }
+    }
+
+    public static void ReWriteMap(){
+        var map = Arrays.copyOf(ORIGINAL_MAP, ORIGINAL_MAP.length);
+
+        for (int i = 0; i < map.length; i++){
+            for (int j = 0; j < map[0].length; j++){
+                if (i == Player.yPos && j == Player.xPos) map[i][j] = Player.body;
+
+                System.out.print(map[i][j]);
+            }
+            System.out.println();
+        }
+    }
+}
+
+class Player {
+    public static char body = '*';
+
+    public static int yPos = 0, xPos = 1; //y is up/down ; x is left/right
+}
diff --git a/Java/Beginer training/src/Training.java b/Java/Beginer training/src/Training.java
new file mode 100644
index 0000000..95886d0
--- /dev/null
+++ b/Java/Beginer training/src/Training.java
@@ -0,0 +1,18 @@
+import java.io.*;
+
+public class Training {
+    public static void main(String args[]){
+        PrintFibonacci(7);
+    }
+
+    public static void PrintFibonacci (int length) {
+        int a = 1, b = 0;
+        for (int i = 0; i < length; i++){
+            System.out.printf("%d ", a);
+
+            int temp = a;
+            a += b;
+            b = temp;
+        }
+    }
+}
diff --git a/Java/Beginer training/src/VampireNumber explanation.txt b/Java/Beginer training/src/VampireNumber explanation.txt
new file mode 100644
index 0000000..10ac553
--- /dev/null
+++ b/Java/Beginer training/src/VampireNumber explanation.txt
@@ -0,0 +1,39 @@
+VampireNumber Java task, code explanation with the number 1827:
+
+1827 (Number that we are checking)
+0123 (Indexes of digits, in code they are named: first, second, third & fourth)
+
+The first and second number that are multiplied are illustrated combined as one (the first half of the calculated numbers is the first multiple, and the second half - the second)
+For example, the number 1278 is actually 12 and 78 and they are multiplied to check for the result
+This is done like that to better illustrate how the numbers change
+
+Cycle:  Swap 1 with 3 (indexes):
+1827    1728
+1782    1287
+1278    1872
+
+2178	2871
+2817	2718
+2781	2187 NOTE: 2187 is the answer, so the code would stop here, but this example is continued to the end
+
+7281	7182
+7128	7821
+7812	7218
+
+8712	8217
+8271	8172
+8127	8721
+
+1827 (Here the cycles end)
+								
+Cycle: it rotates the last 3 digits, for example if we have 123,the 3 gets in the front and the others move back, i.e. 312
+
+       1 2 3 => 3 1 2
+     ^-----'     
+
+Swap 1 with 3: as the name suggests, it makes a second version of the number by swapping the 1st (index) and 2nd (index) digit 
+
+     0 1 2 3 => 0 3 2 1
+       ^---^
+ 
+	       -the swap is there because with the cycle we miss out on half of the possible numbers
\ No newline at end of file
diff --git a/Java/Beginer training/src/VampireNumber.java b/Java/Beginer training/src/VampireNumber.java
new file mode 100644
index 0000000..63d7085
--- /dev/null
+++ b/Java/Beginer training/src/VampireNumber.java
@@ -0,0 +1,45 @@
+public class VampireNumber {
+    public static void main(String args[]){
+        //NOTE: Works ONLY with 4 digit numbers, for bigger use BigVampireNumber
+        System.out.println(FindVampireNumber(6880));
+    }
+
+     public static String FindVampireNumber(int result){
+        String num = result + "";
+        int first = num.charAt(0) - 48, second = num.charAt(1) - 48, third = num.charAt(2) - 48, fourth = num.charAt(3) - 48;
+
+        for (int i = 0; i < 4; i++){
+            for (int j = 0; j < 3; j++){
+                int first_half = Combine(first, second), second_half = Combine(third, fourth);
+                int swapped_first_half = Combine(first, fourth), swapped_second_half = Combine(third, second);
+
+                if (first_half * second_half == result) {
+                    return result + " = " + first_half + " * " + second_half;
+                }
+                else if (swapped_first_half *swapped_second_half == result){
+                    return result + " = " + swapped_first_half + " * " + swapped_second_half;
+                }
+
+                switch (j) {
+                    case 0:
+                    case 1:
+                    int temp = fourth;
+                        fourth = second; second = temp;
+                        temp = third;
+                        third = fourth; fourth = temp;
+
+                        break;
+                    case 2:
+                        temp = second;
+                        second = first; first = temp;
+                        break;
+                }
+            }
+        }
+        return result + " isn't a vampire number";
+    }
+
+    private static int Combine(int first, int second) {
+        return (first * 10) + second;
+    }
+}