Exception Propagation

An exception is first thrown from the top of the stack and if it is not caught, it drops down the call stack to the previous method,If not caught there, the exception again drops down to the previous method, and so on until they are caught or until they reach the very bottom of the call stack.This is called exception propagation.

💡 Rule: By default Unchecked Exceptionss are forwarded in calling chain (propagated).

class TestExceptionPropagation{  
 
  void m(){  
    int data=50/0;  
  }  
  
 void n(){  
    m();  
  }  
  
 void p(){  
   try{  
    n();  
   }catch(Exception e){System.out.println("exception handled");}  
  }  
  
 public static void main(String args[]){  
   TestExceptionPropagation1 obj=new TestExceptionPropagation1();  
   obj.p();  
   System.out.println("normal flow...");  
  }  
}

Output:exception handled
       normal flow...

💡 Rule: By default, Checked Exceptionss are not forwarded in calling chain (propagated).