milesjae.blogg.se - Sorting an array in cobol program

#SORTING AN ARRAY IN COBOL PROGRAM HOW TO#

#SORTING AN ARRAY IN COBOL PROGRAM HOW TO#

This is a demo program to learn and understand the concept of subscript property of an array and how to assign values to array. Here in this program, we have assigned a few variables with different values and later manipulated the output using different properties of an array to make you clear about the different concepts related to INDEX BY property of an ARRAY. MOVE WS - ITEM - VAL TO WS - ITEM - CODE(IDX).ĭISPLAY " PRODUCT " WS - ITEM - CODE(IDX). Ġ5 WS - PRODUCT OCCURS 3 TIMES INDEXED BY IDX. This is a demo program to learn and understand the concept of index by property of an array and how to assign values to array. With this program and output, you will be able to understand how convenient and easy multi-dimensional arrays are. Here in this program, we have assigned a few variables with different values and later manipulated the output using different properties of an array to make you clear about the different concepts related to TWO-DIMENSIONAL ARRAY. THE OUTPUT WILL BE I AM EXAMPLE OF TWO DIMENSIONAL ARRAY PERFORM PRODUCT-PARA VARYING I FROM 1 BY 1 UNTIL I > 3 CREATING 2 DIMENSIONAL ARRAYĭISPLAY "I AM EXAMPLE OF TWO DIMENSIONAL ARRAY".

This is a demo program to learn and understand the concept of two-dimensional array and how to assign values to array. With this program and output, you will be able to understand how convenient and easy arrays are. Here in this program, we have assigned a few variables with different values and later manipulated the output using different properties of an array to make you clear about the different concepts related to ONE DIMENSIONAL ARRAY. THE OUTPUT WILL BE I AM EXAMPLE OF ONE DIMENSIONAL ARRAY CREATING 1 DIMENSIONAL ARRAYĭISPLAY "I AM EXAMPLE OF ONE DIMENSIONAL ARRAY". This is a demo program to learn and understand the concept of one-dimensional array and how to assign values to array.

In order to select element two in the last example, we have to do the following To refer an element one in the last example, we have to give NAME-DAY(1)

Subscript starts with number 1 and later 1 is increased every time with the help of ADD function.

To initialize the subscript, we have to use the MOVE statement.

The subscripts are defined in the working storage section with.

It means the allocated memory is not the actual memory instead points towards the position of the data item.

Subscript refers to the memory location of a particular data item and where it resides.

An integral data item that describes the number of occurrence of elements in an array.

It can also be used to assign TRUE / FALSE to a conditional statement. NOTE:- SET is also used to set the value of switch to ON / OFF. The SET CLAUSE is used to initiate INDEX or to set the value of the INDEX. If we increase the index by 1, the length gets increased by the length defined in the PIC clause. NAME-DAY(1) has a displacement of 18 and so on. We use the " INDEX BY " clause to declare index, and we do not define index in the working storage section. It refers to the displacement position of number from the starting of an array, also known as offset.

There are two ways to refer to the elements in an array:

One dimensional array contains one OCCUR clause, and the two-dimensional array contains two OCCUR Claus.

To access the elements of the table, we can use index or subscript.

Depending on the type of array, i.e., one dimensional or two-dimensional, we can have multiple occur Claus.

Occur Claus must be used for group or elementary data items only.

The occur Claus is used to define the number of occurrences of an element in a table or array.

Instead of doing this, we can simply define internal table week and later input these elements in a single group making it easy for us to manipulate data. Suppose we have to define the days of the week, either we can represent statements like this.

An array can be of different types 1 - dimensional, 2-dimensional.

Arrays are divided in the form of rows and columns.

The records/data, which are to be stored in an array must contain similar properties, i.e., PIC CLAUSE.

To optimize the usage and property of elements, these elements of the same type and behaviour can be grouped in the internal table, and termed as array.

Instead of defining the same type of data multiple times that may fall under the same category or group, COBOL provides us with a powerful function called as array.