Java String Uppercase First Character Example

This Java example shows how to uppercase the first character of a given String in Java.

Java String Uppercase First Character Example

package com.javaguides.strings.utils; public class StringUtility { public static void main(String[] args) { System.out.println(uppercaseFirstChar("source Code Examples")); System.out.println(uppercaseFirstChar("java Guides")); } /**  * Returns the input argument, but ensures the first character is  * capitalized (if possible).  *   * @param in  * the string to uppercase the first character.  * @return the input argument, but with the first character capitalized (if  * possible).  * @since 1.2  */ public static String uppercaseFirstChar(String in ) { if ( in == null || in .length() == 0) { return in; } int length = in .length(); StringBuilder sb = new StringBuilder(length); sb.append(Character.toUpperCase( in .charAt(0))); if (length > 1) { String remaining = in .substring(1); sb.append(remaining); } return sb.toString(); } }
Output:
Source Code Examples Java Guides

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