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Add 'src/de/janchristiangruenhage/demo/math/multiplication/BWMathe.java' 

This was the only (kind of) relevant file form an old github repo, I wont migrate the whole repo, especially, since keeping it in this repo makes way more sense.
This commit is contained in:
Jan Christian Grünhage 2016-11-15 11:50:50 +00:00
parent a58c7aa269
commit b7e9046bc6
1 changed files with 67 additions and 0 deletions
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src/de/janchristiangruenhage/demo/math/multiplication/BWMathe.java Normal file
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package de.janchristiangruenhage.demo.math.multiplication;
import java.io.FileNotFoundException;
import java.math.BigInteger;
/**
* Created by green on 12/8/2015.
*/
public class BWMathe {
public static void main(String[] args) {
Output out = null;
try {
out = new Output("bwmathe_1.txt");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
// for (int i = 1; i < 2016; i++) {
// String multiplierOneString = "1";
// String multiplierTwoString = "1";
// for (int j = 0; j < i; j++) {
// multiplierOneString += "01";
// multiplierTwoString += "00";
// }
// multiplierTwoString += "01";
// BigInteger multiplierOneBigInt = new BigInteger(multiplierOneString);
// BigInteger multiplierTwoBigInt = new BigInteger(multiplierTwoString);
// BigInteger result = multiplierOneBigInt.multiply(multiplierTwoBigInt);
// String resultString = (result.toString());
// int numberOfInitialZeroes = ((resultString.length() - 1) / 2);
// for (int j = 0; j < i; j++) {
// multiplierTwoString += "00";
// }
// multiplierTwoString += "01";
// multiplierTwoBigInt = new BigInteger(multiplierTwoString);
// result = multiplierOneBigInt.multiply(multiplierTwoBigInt);
// resultString = (result.toString());
// int numberOfAdditiveZeroes = (((resultString.length() - 1) / 2) - numberOfInitialZeroes);
// if ((2016 - numberOfInitialZeroes) % numberOfAdditiveZeroes == 0) {
// out.println("Found a Solution: \n" +
// "Number is dividable by " + multiplierOneString + "\n" +
// "i = " + i);
// }
// }
//
String numberString = "1";
for (int i = 0; i < 2016; i++) {
numberString += "01";
}
BigInteger numberBigInt = new BigInteger(numberString);
// boolean isPrime = numberBigInt.isProbablePrime(500);
// out.println(new Boolean(isPrime).toString());
BigInteger divisor = new BigInteger("2");
while (true) {
if (numberBigInt.mod(divisor) == BigInteger.ZERO) {
out.println("Found a Solution: \n" +
"Number is dividable by " + divisor.toString() + "; \n" +
"Result is " +numberBigInt.divide(divisor) + "; ");
}
if (divisor.mod(new BigInteger("1000000")) == BigInteger.ZERO) {
System.out.println("Status update: " + divisor.toString());
}
divisor = divisor.add(BigInteger.ONE);
}
}
}