摘要:
Food Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4415 Accepted Submission(s): 1492... 阅读全文
摘要:
1.设计一个抽象类,声明有关算术运算的方法,并创建四个子类继承该抽象的类,完成进行加、减、乘、除四则运算。 publicabstract class calculate { public abstract double A(double a,doubleb);}public c... 阅读全文