Leap Year Program in ABAP

by | Jun 3, 2018 | ABAP Programs

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Preface – This post is part of the ABAP Programs series.

Leap Year Program in ABAP is a mathematical expression based algorithm that is common across all other programming languages. In this article, we will discuss what is a leap year and how to write ABAP program to find if a year is a leap year or not.

Introduction

Leap Year is a year that has 29 days in the month of February. It means 366 days in year. If a year is divisible by 100, then it must be also divisible by 400 to become a leap year. Also, if the year is not divisible by 100 then in case it is divisible by 4, then it is also a leap year.

Following are the past years that were leap year:

Leap Year Program in ABAP

Leap Year Program in ABAP Image Illustration

ABAP Program

Following ABAP program will find a year is a leap year or not:

PARAMETERS: p_date TYPE dats.
DATA : lv_date TYPE num4.
lv_date = p_date.
IF lv_date MOD 4 = 0.
  IF lv_date MOD 100 = 0.
    IF lv_date MOD 400 = 0.
      WRITE : 'Leap Year '.
    ELSE.
      WRITE : 'Not a Leap Year '.
    ENDIF.
  ELSE.
    WRITE : 'Leap Year '.
  ENDIF.
ELSE.
  WRITE : 'Not a Leap Year '.
ENDIF.

Explanation

To understand this program, we will discuss each lines one by one:

  1. Initially we have defined a parameter p_date of type DATS that is date type in ABAP. Also, we have defined a variable which will convert the date in a numeric date type using type conversion.
  2. Now If a year is divisible by 4, 100 and 400 then it is a leap year. We have added IF-ELSE condition accordingly.

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