converting string to biginteger in java code example

Example 1: transformer un string en Biginteger java

String foo = "some text";
byte[] fooBytes = foo.getBytes();
BigInteger bi = new BigInteger(fooBytes);

Example 2: transformer un string en Biginteger java

public BigInteger toBigInteger(String foo)
{
    return new BigInteger(foo.getBytes());
}

public String fromBigInteger(BigInteger bar)
{
    return new String(bar.toByteArray());
}