![]() The String class provides accessor methods that return the position within the string of a specific character or substring: indexOf() and lastIndexOf(). Here are some other String methods for finding characters or substrings within a string. Searching for Characters and Substrings in a String If no conversions are necessary, these methods return the original string. Returns a copy of this string converted to lowercase or uppercase. Returns a copy of this string with leading and trailing white space removed. Returns a new character sequence constructed from beginIndex index up until endIndex - 1. Regular expressions are covered in the lesson titled "Regular Expressions."ĬharSequence subSequence(int beginIndex, int endIndex) ![]() The optional integer argument specifies the maximum size of the returned array. Searches for a match as specified by the string argument (which contains a regular expression) and splits this string into an array of strings accordingly. Here are several other String methods for manipulating strings: Other Methods in the String Class for Manipulating Strings Method String roar = anotherPalindrome.substring(11, 15) The following code gets from the Niagara palindrome the substring that extends from index 11 up to, but not including, index 15, which is the word "roar": Here, the returned substring extends to the end of the original string. The integer argument specifies the index of the first character. Returns a new string that is a substring of this string. The substring begins at the specified beginIndex and extends to the character at index endIndex - 1. String substring(int beginIndex, int endIndex) The substring method has two versions, as shown in the following table: The substring Methods in the String Class Method If you want to get more than one consecutive character from a string, you can use the substring method. ![]() Indices begin at 0, so the character at index 9 is 'O', as illustrated in the following figure: O roar again!" Ĭhar aChar = anotherPalindrome.charAt(9)
0 Comments
Leave a Reply. |