使用java.lang.Math类，当键盘输入10个整数（0-99），找出它们之中的最大者及最小者，并统计大于50的整数个数。

* 且运用异常处理。（eg: 101, 1a ...）-Use java.lang.Math class, when the keyboard input 10 integer (0-99), the largest of them were identified and the least, and an integer greater than 50 the number of statistics.* And the use of exception handling. (Eg: 101, 1a ...)