1 files changed, 78 insertions, 2 deletions
diff --git a/Java/Beginer training/src/Training.java b/Java/Beginer training/src/Training.java
index 95886d0..7fb6ca6 100644
--- a/Java/Beginer training/src/Training.java
+++ b/Java/Beginer training/src/Training.java
@@ -1,8 +1,84 @@
-import java.io.*;
+import java.util.ArrayList;
+import java.math.*;
 
 public class Training {
     public static void main(String args[]){
-        PrintFibonacci(7);
+        //PrintFibonacci(7);
+        System.out.println(NumberName(6783508));
+    }
+
+    public static String NumberName(int num) {
+        StringBuilder name = new StringBuilder(num < 0 ? "negative " : "");
+        var number_parts = new ArrayList<Integer>();
+
+        while (num != 0) {
+            number_parts.add(Math.abs(num % 1000));
+            num /= 1000;
+        }
+
+        for (int i = number_parts.size() - 1; i > -1; i--){
+            int curr_num = number_parts.get(i);
+
+            if ((curr_num + "").length() == 3) {
+                name.append(SmallNumName(curr_num / 100)).append(" hundred ");
+
+                curr_num %= 100;
+                if (curr_num / 10 == 0) name.append("and ");
+            }
+            name.append(SmallNumName(curr_num));
+
+            switch (i) {
+                case 1: name.append(" thousand "); break;
+                case 2: name.append(" million "); break;
+                case 3: name.append(" milliard "); break;
+            }
+        }
+        return name.toString();
+    }
+
+    private static String SmallNumName(int num) {
+        int part = 1;
+        switch (num) {
+            case 0: return "";
+            case 1: return "one";
+            case 2: return "two";
+            case 3: return "three";
+            case 4: return "four";
+            case 5: return "five";
+            case 6: return "six";
+            case 7: return "seven";
+            case 8: return "eight";
+            case 9: return "nine";
+
+            case 10: return "ten";
+            case 11: return "eleven";
+            case 12: return "twelve";
+            case 13: return "thirteen";
+            case 15: return "fifteen";
+            case 18: return "eighteen";
+            case 14:                part = 4;
+            case 16: if (part == 1) part = 6;
+            case 17: if (part == 1) part = 7;
+            case 19: if (part == 1) part = 9;
+                     return SmallNumName(part) + "teen";
+        }
+
+        if (num > 20 && num < 100) {
+            int f_digit = num / 10;
+            StringBuilder name = new StringBuilder();
+
+            switch (f_digit) {
+                case 2: name.append("twenty "); break;
+                case 3: name.append("thirty "); break;
+                case 5: name.append("fifty "); break;
+                case 8: name.append("eighty "); break;
+
+                default: name.append(SmallNumName(f_digit)).append("ty "); break;
+            }
+
+            return name + SmallNumName(num % 10);
+        }
+        return "ERR";
     }
 
     public static void PrintFibonacci (int length) {