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import java.util.Arrays;
public class Main
{
public static void main (String[]args)
{
// according to this video i will create the code
// https://www.youtube.com/watch?v=yHVq0g6XWes
int firstNumber = MyConsole.readInt ("give me the first number for the Egyption multiplication : "); // for example first number = 10
int secondNumber = MyConsole.readInt ("give me the second number for the Egyption multiplication : "); // for example second number = 30
System.out.println (firstNumber);
System.out.println (secondNumber);
// initializing the first number column of the ejyption multiplication
int amountOfElements = 0;
for (int i = 1; i < firstNumber; i *= 2)
{ // 1 2 4 8 are less then 10
amountOfElements++;
}
int[] firstNumberMulti = new int[amountOfElements]; // [0,0,0,0]
int counter = 0;
for (int i = 1; i < firstNumber; i *= 2)
{
firstNumberMulti[counter] = i;
counter++;
}
// we will get [1,2,4,8] for the example where firstNumber = 10
System.out.println ("first number column: " +
Arrays.toString (firstNumberMulti));
// now we will initilize the secondNumber array
int[] secondNumberMulti = new int[amountOfElements]; // [0,0,0,0]
for (int i = 0; i < secondNumberMulti.length; i++) // we will get for second Number = 30 [30,60,120,240]
{
secondNumberMulti[i] = secondNumber;
secondNumber *= 2;
}
System.out.println ("the second Array is : " +
Arrays.toString (secondNumberMulti));
// now we need to find a way to calculate which sum of numbers will be equals to
// the firstNumber
for (int i = 0; i < firstNumberMulti.length; i++)
{
int sumOfAll = 0;
sumOfAll += firstNumberMulti[i];
}
}
}
/**
* An easy interface to read numbers and strings from
* standard input
* @version 1.10 10 Mar 1997
* @author Cay Horstmann
*/
public class MyConsole
{ /**
* print a prompt on the console but don't print a newline
* @param prompt the prompt string to display
*/
public static void printPrompt(String prompt)
{ System.out.print(prompt + " ");
System.out.flush();
}
/**
* read a string from the console. The string is
* terminated by a newline
* @return the input string (without the newline)
*/
public static String readString()
{ int ch;
String r = "";
boolean done = false;
while (!done)
{ try
{ ch = System.in.read();
if (ch < 0 || (char)ch == '\n')
done = true;
else if ((char)ch != '\r') // weird--it used to do \r\n translation
r = r + (char) ch;
}
catch(java.io.IOException e)
{ done = true;
}
}
return r;
}
/**
* read a string from the console. The string is
* terminated by a newline
* @param prompt the prompt string to display
* @return the input string (without the newline)
*/
public static String readString(String prompt)
{ printPrompt(prompt);
return readString();
}
/**
* read a word from the console. The word is
* any set of characters terminated by whitespace
* @return the 'word' entered
*/
public static String readWord()
{ int ch;
String r = "";
boolean done = false;
while (!done)
{ try
{ ch = System.in.read();
if (ch < 0
|| java.lang.Character.isWhitespace((char)ch))
done = true;
else
r = r + (char) ch;
}
catch(java.io.IOException e)
{ done = true;
}
}
return r;
}
/**
* read an integer from the console. The input is
* terminated by a newline
* @param prompt the prompt string to display
* @return the input value as an int
* @exception NumberFormatException if bad input
*/
public static int readInt(String prompt)
{ while(true)
{ printPrompt(prompt);
try
{ return Integer.valueOf
(readString().trim()).intValue();
} catch(NumberFormatException e)
{ System.out.println
("Not an integer. Please try again!");
}
}
}
/**
* read a floating point number from the console.
* The input is terminated by a newline
* @param prompt the prompt string to display
* @return the input value as a double
* @exception NumberFormatException if bad input
*/
public static double readDouble(String prompt)
{ while(true)
{ printPrompt(prompt);
try
{ return Double.valueOf
(readString().trim()).doubleValue();
} catch(NumberFormatException e)
{ System.out.println
("Not a floating point number. Please try again!");
}
}
}
}
