class Demo{ int div(int a,int b)throws FuShuException { if(b<0) throw new FushuException(); return a/b; }}class ExceptionDemo3{ public static void main(String[] args) { Demo d=new Demo(); try { int x=d.div(4,1); System.out.println("x="+x); } catch(FuShuException e) { System.out.println(e.toString()); System.out.println("除数出现负数了"); } System.out.println("over");}}
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