JAVA自定义异常使用方法

public class Work2 {

  public static void main(String[] args) {
    ExceptionGenerator exceptionGenerator = new ExceptionGenerator();

    //处理第一种自定义编译时异常
    try {
      exceptionGenerator.genFirstException();
    } catch (MyFirstException e) {
      e.printStackTrace();
    }

    //处理第二种自定义运行时异常
    try {
      exceptionGenerator.genSecondException();
    } catch (MySecondException e) {
      e.printStackTrace();
    }

    //处理第三种自定义编译时异常
    try {
      exceptionGenerator.genThirdException();
    } catch (MyThirdException e) {
      e.printStackTrace();
    }
  }

}

class ExceptionGenerator {

  //抛出第一种编译时异常
  public void genFirstException() throws MyFirstException {
    throw new MyFirstException("第一种编译时类型的异常");
  }

  //抛出第二种运行时异常
  public void genSecondException() {
    throw new MySecondException("第二种运行时类型的异常");
  }
  //抛出第二种编译时异常
  public void genThirdException() throws MyThirdException {
    throw new MyThirdException("第三种编译时类型的异常");
  }
}

/*
    第一种自定义编译时异常
 */
class MyFirstException extends Exception {

  public MyFirstException(String msg) {
    super(msg);
  }
}
/*
    第二种自定义运行时异常
 */
class MySecondException extends RuntimeException {
  public MySecondException(String msg) {
    super(msg);
  }
}
/*
    第三种自定义编译时异常
 */
class MyThirdException extends Exception {
  public MyThirdException(String msg) {
    super(msg);
  }
}