有没有办法获得 'BigInteger' 变量的总大小？
Is there a way to get the total size of a 'BigInteger' variable?
我想知道在我的程序中 BigInteger 类型的变量有多大。
这可能吗？
使用bitLength() (source)
The java.math.BigInteger.bitLength() returns the number of bits in the minimal two's-complement representation of this BigInteger, excluding a sign bit. For positive BigIntegers, this is equivalent to the number of bits in the ordinary binary representation.
BigInteger bi;
bi = new BigInteger("778674");
System.out.println("length: " + bi.bitLength());
我想知道在我的程序中 BigInteger 类型的变量有多大。
这可能吗？
使用bitLength() (source)
The
java.math.BigInteger.bitLength()returns the number of bits in the minimal two's-complement representation of thisBigInteger, excluding a sign bit. For positiveBigIntegers, this is equivalent to the number of bits in the ordinary binary representation.
BigInteger bi;
bi = new BigInteger("778674");
System.out.println("length: " + bi.bitLength());