• • 常用成员方法
    
• • public static int abs(int a)
  • public static double ceil(double a)
  • public static double floor(double a)
  • public static int max(int a,int b) min自学
  • public static double pow(double a,double b)
  • public static double random()
  • public static int round(float a) 参数为double的自学
  • public static double sqrt(double a)
    
  
  

good,good,good