自定义异常
一般会选择继承Exception和RuntimeException,如果不要求调用者一定要处理抛出的异常,就继承RuntimeException。
代码实例:
People实体类
public class People { String name=""; int age=0; String sex; public String getSex() { return sex; } public void setSex(String sex) throws Exception{ if("男".equals(sex) || "女".equals(sex)) { this.sex=sex; } else { throw new GendorException("性别必须是男或者女"); } } }自定义异常类
public class GendorException extends Exception { public GendorException(String msg) { super(msg); } }测试
public class Test { public static void main(String[] args) { // TODO Auto-generated method stub People p=new People(); try { p.setSex("Male"); } catch (Exception e) { System.out.println("设置性别出错了"); e.printStackTrace();//输出异常信息 } } }效果:
转载于:https://www.cnblogs.com/schangxiang/p/11179314.html
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