Download E-books Beginning COBOL for Programmers PDF
By Michael Coughlan
Beginning COBOL for Programmers is a entire, subtle educational and modular abilities reference at the COBOL programming language for verified programmers. This booklet is for you while you're a developer who would prefer to—or must—add COBOL in your repertoire. probably you know the possibilities offered through the present COBOL talents hindrance, or are operating in a challenge severe company which keeps legacy COBOL functions. no matter what your scenario, Beginning COBOL for Programmers meets your wishes as a longtime programmer relocating to COBOL.
Beginning COBOL for Programmers comprises complete assurance of ANS eighty five COBOL positive aspects and methods, together with keep watch over buildings, names, sequential and direct entry documents, info redefinition, string dealing with, decimal mathematics, subprograms, and the document author. the ultimate bankruptcy features a titanic creation to object-oriented COBOL.
Benefiting from over 100 instance courses, you’ll obtain an intensive advent to the center and complicated gains of the COBOL language and should discover ways to follow those via entire and sundry routines. If you will have inherited a few legacy COBOL, you’ll be capable of snatch the COBOL idioms, comprehend the constructs, and realize what is occurring within the code you’re operating with.
Today’s company program builders will locate that COBOL talents open new—or old—doors, and this wide COBOL reference is the booklet that can assist you gather and enhance your COBOL skills.
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IF no longer (TransCode IS = three OR overall > 2550)... IF Num1 = 31 OR Num2 = 12 AND Num3 = 23 OR Num4 = 6... IF (Num1 = 31 OR (Num2 = 12 AND Num3 = 23)) OR Num4 = 6... IF Num1 = 15 OR Num1 = 12 OR Num1 = 7 and town = "Cork"... IF (Num1 = 15 OR Num1 = 12 OR Num1 = 7) and town = "Cork"... IF (Num1 = 1 OR Num1 = 2) AND (Num2 = 6 OR Num2 = eight) ... IF Num1 = 1 OR Num1 = 2 AND Num2 = 6 OR Num2 = eight ... five. certain The brackets merely make particular what's ordained by way of the priority ideas. NO within the first Num1=7 AND City=SPACES are ANDed jointly yet within the moment City=“Cork” is ANDed with the results of the expression within the parentheses NO Write an overview assertion to enforce the choice a part of a video game of rock, paper, scissors. many of the software has been written for you. simply entire the overview. upload a while different department to the overview to observe while a participant enters a code except 1, 2, or three. directory 5-10. Rock, Paper, Scissors video game identity department. PROGRAM-ID. Listing5-10. writer. Michael Coughlan. info department. WORKING-STORAGE part. 01 PlayerGuess-A PIC nine 88 Rock-A price 1. 88 Paper-A price 2. 88 Scissors-A worth three. 01 PlayerGuess-B 88 Rock-B 88 Paper-B 88 Scissors-B 106 NO price 1. PIC nine price 2. worth 1. price 2. worth three. bankruptcy five N keep watch over constructions: choice process department. commence. reveal "Guess for participant A (1=rock, 2=scissors, 3=paper) with out ADVANCING settle for PlayerGuess-A exhibit "Guess for participant B (1=rock, 2=scissors, 3=paper) without ADVANCING settle for PlayerGuess-B overview precise additionally real whilst Rock-A additionally Rock-B demonstrate "Draw" whilst Rock-A additionally Paper-B demonstrate "Player B whilst Rock-A additionally Scissors-B exhibit "Player A whilst Paper-A additionally Rock-B exhibit "Player A whilst Paper-A additionally Paper-B reveal "Draw" whilst Paper-A additionally Scissors-B exhibit "Player B whilst Scissors-A additionally Rock-B exhibit "Player B whilst Scissors-A additionally Paper-B show "Player A while Scissors-A additionally Scissors-B show "Draw" while different demonstrate "Evaluate challenge" END-EVALUATE cease RUN. : " : " wins" wins" wins" wins" wins" wins" PROGRAMMING workout resolution directory 5-11. easy Calculator id department. PROGRAM-ID. Listing5-11. writer. Michael Coughlan. *> Accepts numbers and an operator from the person. *> Applies the perfect operation to the 2 numbers. information department. WORKING-STORAGE part. 01 Num1 PIC nine price 7. 01 Num2 PIC nine price three. 01 outcome PIC --9. ninety nine price ZEROS. 01 Operator PIC X price "-". 88 ValidOperator VALUES "*", "+", "-", "/". process department. CalculateResult. reveal "Enter a unmarried digit quantity : " with out ADVANCING settle for Num1 reveal "Enter a unmarried digit quantity : " with out ADVANCING 107 CHAPTER five N regulate buildings: choice settle for Num2 exhibit "Enter the operator to be utilized : " with out ADVANCING settle for Operator assessment Operator whilst "+" upload Num2 TO Num1 GIVING end result whilst "-" SUBTRACT Num2 FROM Num1 GIVING outcome whilst "*" MULTIPLY Num2 via Num1 GIVING end result while "/" DIVIDE Num1 through Num2 GIVING outcome ROUNDED while different reveal "Invalid operator entered" END-EVALUATE IF ValidOperator reveal "Result is = ", end result END-IF cease RUN.