Substring in Java
There are two variants of the substring() method. This article depicts all of them, as follows :
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1. String substring(): This method has two variants and returns a new string that is a substring of this string. The substring begins with the character at the specified index and extends to the end of this string. And index of substring starts from 1 and not from 0.
Syntax : public String substring(int begIndex) Parameters : begIndex : the begin index, inclusive. Return Value : The specified substring.
The extracted substring is : geeksforgeeks
2. String substring(begIndex, endIndex): This method has two variants and returns a new string that is a substring of this string. The substring begins with the character at the specified index and extends to the end of this string or up to endIndex – 1 if the second argument is given.
Syntax : public String substring(int begIndex, int endIndex) Parameters : beginIndex : the begin index, inclusive. endIndex : the end index, exclusive. Return Value : The specified substring.
The extracted substring is : geeks
Possible application: The substring extraction finds its use in many applications including prefix and suffix extraction. For example to extract a Lastname from the name or extract only denomination from a string containing both amount and currency symbol. The latter one is explained below.
The original string is : Rs 1000 The extracted substring is : 1000
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