Replace first character in string java to uppercase

*/ public static String replace15( String input, String oldPattern, String newPattern ){ return input.replace(oldPattern, newPattern); } /** * Not quite as simple in Java 1.4. The replaceAll method works, * but requires more care, since it uses regular expressions, which * may contain special characters.

Java String replace() Method. Java String replace() method replaces every occurrence of a given character with a new character and returns a new string. The Java replace() string method allows the replacement of a sequence of character values.
Getting byte array from a string example. String indexOf () example. String lastIndexOf () example. String startsWith () example. String endsWith () example. String split function example. Extract char array from string example. Replace characters in a string example. Trim spaces in string example.
This Java example shows how to capitalize first character of string or make first letter uppercase in Java using various approaches. How to capitalize first character or make first letter uppercase? To capitalize the first character of String or make first letter uppercase, you can use one of the below given approaches.
Feb 25, 2017 · toCharArray() toCharArray() = converts this string into character array. 19. toLowerCase() & toUpperCase() toLowerCase() = returns the string in lowercase letter. In other words, it converts all characters of the string into lower case letter. toUpperCase() = returns the string in uppercase letter.
Apr 18, 2017 · I need to convert to uppercase both characters at the starts of the word and right after the ' character (which can exists multiple times). The output I need (using the previous example) is. word W'Ord Wo'Rd I tried with a simple pattern. s.replaceAll("(\\w)(\\w*)'(\\w)", "$1"); but I'm unable to convert the group 1 and 3 to uppercase
IndexOf(String, Int32, Int32, StringComparison) Reports the zero-based index of the first occurrence of the specified string in the current String object. Parameters specify the starting search position in the current string, the number of characters in the current string to search, and the type of search to use for the specified string.
Java Program to replace lower-case characters with upper-case and vice-versa. Here, our task is to replace all the lower-case characters in the string to upper-case and upper-case characters to lower-case. For this purpose, we need to traverse the string and check for each character.
What you want to do is convert the string to an array using the String class' charAt () method, and then use Character.toUpperCase () to change the character to upper case (obviously). Your code would look like this: char first = Character.toUpperCase (userIdea.charAt (0)); betterIdea = first + userIdea.substring (1);
Converting an integer to a string is a common practice when programming. For some application processes, it's necessary to manipulate the format. Java makes converting an integer to a string easy through one of its internal functions.
The simplest way to capitalize the first letter of a string in Java is by using the String.substring () method: String str = "hello world!"; String output = str.substring(0, 1).toUpperCase() + str.substring(1); System. out.println( output); The above example transforms the first letter of string str to uppercase and leaves the rest of the ...
Apr 18, 2017 · I need to convert to uppercase both characters at the starts of the word and right after the ' character (which can exists multiple times). The output I need (using the previous example) is. word W'Ord Wo'Rd I tried with a simple pattern. s.replaceAll("(\\w)(\\w*)'(\\w)", "$1"); but I'm unable to convert the group 1 and 3 to uppercase