testbiginteger.java

来自「由浅入深的介绍JAVAse的基本编程思想」· Java 代码 · 共 15 行

import java.math.BigInteger;
public class TestBigInteger{
	public static void main(String args[]){
		BigInteger a = BigInteger.valueOf(43);
		BigInteger b = new BigInteger("12345678901234560000");
		//Long c = new Long(12345678901234560000L);	//超出范围
		BigInteger c = a.add(b);
		System.out.println(c);
		System.out.println(a.multiply(b.subtract(BigInteger.valueOf(120))));
		System.out.println(b.remainder(a));
		System.out.println(b.divide(a));
		System.out.println(b.pow(2));
		System.out.println(b.compareTo(a));
	}	
}