We know that strings follow zero-based indexing, and the first character is always present at index 0. The program below shows how to use this method to fetch the first character of a string. The beginning position and length of the substring are stored in the string's offset and count fields. To get the string after the character, the. The String class method and its return type are a char value. Up to and including Java 6, a substring created by substring() points to the same char array as the original string. The indexOf method returns the index of the specified character in the parameter which is in this case. If indexStart is greater than inde圎nd, then the effect of substring () is as. If indexStart is equal to inde圎nd, substring () returns an empty string. In particular: If inde圎nd is omitted, substring () extracts characters to the end of the string. ![]() The charAt() method takes an integer index value as a parameter and returns the character present at that index. substring () extracts characters from indexStart up to but not including inde圎nd. Get the First Character Using the charAt() Method in Java Let’s learn the different ways of fetching the first character from a string. My actual intention is to substring it from nth occurrence of a character. Strings can be used for various purposes, and we may need to access their different characters to manipulate them.įor example, if we have a string array of first names and we want to make sure that the first character of each name is capitalized, we need to access the first character of each string. In this case, if I ask for 3rd occurrence of slash (/), it appears before folder3, and I expect to return this index position. We also listed some example codes to help you understand the topic.Ī string is simply a collection or sequence of characters in Java. This tutorial introduces how to get the first character of a string in Java.
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