catchexception.java

来自「some example source of java,for beginner」· Java 代码 · 共 39 行

package example8;

public class CatchException {
  public static void a() throws MyException{
    System.out.println("Throwing MyException from a()");
    throw new MyException();
  }
  public static void b() throws MyException{
    System.out.println("Throwing MyException from b()");
    throw new MyException("Originated in b()");
  }
  public static void c() throws MyException{
    System.out.println("Throwing MyException from c()");
    throw new MyException("Originated in c()",47);
  }

  public static void main(String[] args) {
    try{
      a();
    }
    catch(MyException e){
      e.getMessage();
    }
    try{
      b();
    }
    catch(MyException e){
      e.toString();
    }
    try{
      c();
    }
    catch(MyException e){
      e.printStackTrace();
      System.out.println("error code:"+e.val());
    }
  }
}