How to use strings in Rexx

Overview

In this shot, we’ll learn how to define a string and discuss the common methods used on a string in Rexx.

Syntax

To define a string, assign a string text to a variable name.

Output

We are learning rexx - strings

Methods

Here some common methods used on a string in Rexx.

1. length(str)

You can use the length method to count the number of characters in a string.

• Parameters: A string or a reference variable.

• Return value: An integer that represents the number of characters in the string.

2. reverse(str)

You can use the reverse() method to return a reversed string.

• Parameters: A string or a reference variable.

• Return value: A string that is the reverse of the original string.

3. compare(str1,str2)

You can use the compare() method to compare two strings.

• Parameters:

  • str1 : A string or reference variable.
  • str2 : Another string to compare str1 with.

• Return value:

  • 0: The strings are equal.
  • Integer: The index of the first character that does not match between the strings.

Code

The output of the code is as follows:

11

dlroW olleH

0

11 is the length of the string and dlroW olleH is the reverse of the string. 0 means that the strings are equal.