{
  "type": "code_options",
  "author": "csdn.net",
  "source": "solution.md",
  "exercise_id": "7896b88027e34a4ea6de980d35e10418",
  "keywords": "算法初阶,基础知识,分治策略,用主方法求解递归式",
  "title": "模拟计算器",
  "desc": [
    {
      "content": "\n模拟简单的计算器。\n要求：\n（1）定义名为Number的类，在其中定义两个私有的整型数据成员n1和n2；\n（2）在Number类中编写构造方法，赋予n1和n2初始值；\n（3）再为Number类定义加（addition）、减（subtration）、乘（multiplication）、除（division）四个公有成员方法，分别对两个成员变量执行加、减、乘、除的运算。注意：除法运算时要抛出除数为0的异常。\n（4）在主方法中创建Number类的对象，调用上述各个方法，测试并输出计算结果，注意进行必要的异常捕获与处理。",
      "language": "markdown"
    }
  ],
  "answer": [
    {
      "content": "",
      "language": "java"
    }
  ],
  "prepared": [
    [
      {
        "content": "",
        "language": "java"
      }
    ],
    [
      {
        "content": "",
        "language": "java"
      }
    ],
    [
      {
        "content": "",
        "language": "java"
      }
    ]
  ],
  "template": {
    "content": "public class Number {\n\tprivate int n1;\n\tprivate int n2;\n\tpublic Number(int n1, int n2) {\n\t\tthis.n1 = n1;\n\t\tthis.n2 = n2;\n\t}\n\tpublic int addition() {\n\t\treturn n1 + n2;\n\t}\n\tpublic int subtration() {\n\t\treturn n1 - n2;\n\t}\n\tpublic int multiplication() {\n\t\treturn n1 * n2;\n\t}\n\tprivate int division() {\n\t\tif (n2 == 0) {\n\t\t\tthrow new IllegalArgumentException(\"除数参数不合法\");\n\t\t}\n\t\treturn n1 / n2;\n\t}\n\tpublic static void main(String[] args) {\n\t\tNumber number = new Number(6, 0);\n\t\tSystem.out.println(number.addition());\n\t\tSystem.out.println(number.subtration());\n\t\tSystem.out.println(number.multiplication());\n\t\ttry {\n\t\t\tSystem.out.println(number.division());\n\t\t} catch (Exception e) {\n\t\t\tSystem.out.println(e.getMessage());\n\t\t}\n\t}\n}",
    "language": "java"
  },
  "node_id": "dailycode-a97f6434fd15477d982f9ef33297caff",
  "license": "csdn.net",
  "created_at": 1637894161,
  "topic_link": "https://bbs.csdn.net/topics/600469981"
}