String emptyOutput = StringUtils.capitalize(EMPTY_INPUT); assertEquals(EMPTY_EXPECTED, emptyOutput); String nullOutput = StringUtils.capitalize(null); assertNull(nullOutput); 6. Conclusion In this article, we’ve learned how to convert the first character of a given string to upper case. The cod...
完整的StringUtils类如下: publicclassStringUtils{publicstaticStringcapitalizeFirstLetter(Stringinput){if(input==null||input.isEmpty()){returninput;// 检查空字符串}StringfirstLetter=input.substring(0,1);// 获取首字母StringrestOfString=input.substring(1);// 获取剩余字符串firstLetter=firstLetter.toUpperCa...
publicclassCapitalizeFirstLetter{publicstaticvoidmain(String[]args){Stringinput="hello world";Stringresult=capitalizeFirstLetter(input);System.out.println(result);}publicstaticStringcapitalizeFirstLetter(Stringinput){// 步骤2:检查字符串是否为空if(input==null||input.isEmpty()){returninput;}// 步骤3:...
(result.length() - 1); } // 返回结果字符串 return result.toString(); } public static void main(String[] args) { String input = "hello world java programming"; String output = capitalizeFirstLetterOfEachWord(input); System.out.println(output); // 输出: Hello World Java Programming } ...
首先检查当前单词是否大写: boolean capitalize = isUpper(text, pos); 如果是大写的方法应该跳过这个词,移到下一个。否则,它会将第一个字符大写并降低剩余的字符。对课文中的所有单词应用相同的逻辑。 代码可能如下所示: public static String getSentenceCas SwiftUI-大写首字母 任何Swift(NS)字符串API也可以在...
使用函数: StringUtils.abbreviate(testString,width)和StringUtils.abbreviate(testString,offset,width) 函数介绍:在给定的width内取得testString的缩写,当testString的长度小于width则返回原字符串. 例程: String test = "This is a test of the abbreviation."; ...
static String reverseString(final String input) { // recursive termination if (input.length() <= 1) return input; final char firstChar = input.charAt(0); final String remaining = input.substring(1); // recursive descent return reverseString(remaining) + firstChar; } 以下更紧凑的变型不具...
string.reverse.deleteCharAt(reverse.length()-1);returnreverse.toString();}// Main method to execute the program.publicstaticvoidmain(String[]args){Stringstr1="Reverse words in a given string";// Given input string.// Display the given string.System.out.println("The given string is: "+str...
An API that capitalizes on that would streamline error handling and cancellation, improve reliability, and enhance observability. And it would make it easy and helpful to start and end that single unit of work in the same scope, defining a unique entry and exit point for handling concurrent co...
publicclassCapitalizeFirstLetter{publicstaticStringcapitalize(Stringinput){// 检查字符串是否为空if(input==null||input.isEmpty()){returninput;// 返回原始字符串}// 获取首字母并转换为大写charfirstChar=Character.toUpperCase(input.charAt(0));// 获取剩余部分StringrestOfString=input.length()>1?input.subs...