Apex Intermediate Progress | ( Lessons)

Lesson: 028 | compareTo()

Notes
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Notes

In Apex, the compareTo() method is used to compare two String objects lexicographically. It returns an integer value indicating the relationship between the two strings. Here's a brief overview:

Here's an example:

String str1 = 'Apple';
String str2 = 'Banana';

Integer result = str1.compareTo(str2);

if (result < 0) {
    System.debug('str1 is less than str2');
} else if (result == 0) {
    System.debug('str1 is equal to str2');
} else {
    System.debug('str1 is greater than str2');
}

Return Values:
- Returns a negative integer if the calling string is lexicographically less than the specified string (otherString).
- Returns zero if the calling string is lexicographically equal to the specified string.
- Returns a positive integer if the calling string is lexicographically greater than the specified string.
Explanation:
- In the example, it will print 'str1 is less than str2' because 'Apple' is lexicographically less than 'Banana'.
Note:
- The comparison is case-sensitive; uppercase letters have a different ASCII value than their lowercase counterparts.
- If you want a case-insensitive comparison, you might convert both strings to lowercase (or uppercase) before using compareTo().

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Lesson: 028 | compareTo()

Notes

Apex Intermediate