How to find related Exception in OO ABAP

REPORT ZExceptionsDemo. PARAMETERS Num_1 TYPE I. DATA res_1 TYPE P DECIMALS 2. DATA orf_1 TYPE REF TO CX_ROOT. DATA txt_1 TYPE STRING. start-of-selection. Write: / 'Square Root and Division with:', Num_1. write: /. TRY. IF ABS( Num_1 ) > 150. RAISE EXCEPTION TYPE CX_DEMO_ABS_TOO_LARGE. ENDIF. TRY. res_1 = SQRT( Num_1 ). Write: / 'Result of square root:', res_1. res_1 = 1 / Num_1. Write: / 'Result of division:', res_1. CATCH CX_SY_ZERODIVIDE INTO orf_1. txt_1 = orf_1→GET_TEXT( ). CLEANUP. CLEAR res_1. ENDTRY. CATCH CX_SY_ARITHMETIC_ERROR INTO orf_1. txt_1 = orf_1→GET_TEXT( ). ******************************************* **Below is the code where we get the exception in orf_1 and the related text also can be found. CATCH CX_ROOT INTO orf_1. txt_1 = orf_1→GET_TEXT( ). ENDTRY. IF NOT txt_1 IS INITIAL. Write / txt_1. ENDIF. Write: / 'Final Result is:', res_1. ********************************