Handle errors in RPG like CL:

We can catch any type of exception in the RPG program by using MONITOR opcode, it is like the MONMSG of CLP. You can put any code between MONITOR and ENDMON opcodes, so that whatever error occurred in this range will be monitored. See the example below:
Example:
Declare an array like Arr with DIM(2) Declare 3 variables A, B and C with length 2,0.
The below code shows, how to monitor the runtime errors. The initial value of A and C is 0, initiate value of B is 11.

MONITOR
B DIV A
Arr(B) Dsply
ON-ERROR 0102
'Div by 0' Dsply
ON-ERROR 0121
'Index Err' Dsply
ON-ERROR
'Error' Dsply
ENDMON

Similar way specific errors can be captured and handled accordingly in RPG.