Working Storage section comes under DATA division. Different datatypes of COBOL are explained here.
Below sample cobol program declares and Displays a working storage variable named ‘MY-STRING’.
----+----1----+----2----+----3----+----4----+----5----+----6----+----7-- IDENTIFICATION DIVISION. PROGRAM-ID. KARTEST3. * define and use a working storage variable ENVIRONMENT DIVISION. DATA DIVISION. WORKING-STORAGE SECTION. 01 MY-STRING PIC X(20) VALUE 'HELLO WORLD ! '. PROCEDURE DIVISION. DISPLAY MY-STRING. GOBACK.
Output of this program will be
HELLO WORLD !