java 用float和double指数记数法所能表示的最大和最小的数字

public class MaxMinFloatDouble { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub float fmax = Float.MAX_VALUE; float fmin = Float.MIN_VALUE; double dmax = Double.MAX_VALUE; double dmin = Double.MIN_VALUE; System.out.println(fmax); System.out.println(fmin); System.out.println(dmax); System.out.println(dmin); /*result: 3.4028235E38 1.4E-45 1.7976931348623157E308 4.9E-324*/ } }