tutorialspoint; public class CharacterDemo { public static void main(String[] args) { // create 4 char primitives char ch1, ch2, ch3, ch4; // assign values to ch1, ch2 ch1 = '4'; ch2 = 'q'; // assign uppercase of ch1, ch2 to ch3, ch4 ch3 = Character.toUpperCase(ch1); ch4 ...
在Java中,可以使用大小写转换方法来等同字符。具体方法如下: 将字符转换为大写:使用Character.toUpperCase(char ch)方法将指定的字符转换为大写字母。例如,将字符'a'转换为大写字母'A'的代码如下: 代码语言:txt 复制 char lowercaseChar = 'a'; char uppercaseChar = Character.toUpperCase(lowercaseChar); System....
You can use Charater class’s touppercase method to convert char to uppercase in java. Method signature Java 1 2 3 public static char touppercase(char ch) Parameters ch is primitive character type. Return type return type is char. If char is already uppercase then it will return same. ...
importorg.apache.commons.lang3.StringUtils;publicclassCharUpperLowerCase{publicstaticvoidmain(String[]args){charchar1,char2;String string1="a";String string2="B";String string1UpperCase=StringUtils.capitalize(string1);String string2LowerCase=StringUtils.lowerCase(string2);char1=string1UpperCase.charAt...
Change char case In this chapter you will learn: Is Character a upper/lower Case The following code usesCharacter.isUpperCasemethod to tell is a char a uppercase char publicclassMain {publicstaticvoidmain(String[] args) {charsymbol ='A';/*fromjava2s.com*/if(Character.isUpperCase(symbol)) ...
char ch = ' '; boolean isWhitespace = Character.isWhitespace(ch); // 返回 true 1. 2. toUpperCase() toUpperCase() 方法用于将给定字符转换为大写: char ch = 'a'; char upperCaseCh = Character.toUpperCase(ch); // 返回 'A' 1.
publicclassJavaCharacterToUpperCaseExample1{publicstaticvoidmain(String[] args){// Create four char primitives.charch1, ch2, ch3, ch4;// Assign the values to ch1 and ch2.ch1 ='m'; ch2 ='q';// Assign the uppercase of ch1 and ch2 to ch3 and ch4 respectively.ch3 = Character.toUpperCase(...
Java Character to Uppercase - Learn how to convert characters to uppercase in Java with simple examples and explanations. Master the Character.touppercase method effectively.
使用toLowerCase()方法将字符串转换为小写形式: String str = "HelloWorld"; String lowerCaseStr = str.toLowerCase(); System.out.println(lowerCaseStr); // 输出:helloworld 复制代码 使用Character类的toUpperCase()方法将字符转换为大写形式: char c = 'a'; char upperCaseChar = Character.toUpperCase(...
除了使用String类的方法，还可以使用Character类的toUpperCase()和toLowerCase()方法来单独处理一个字符。这两个方法会将字符转换为大写和小写，并返回一个新的字符。示例代码如下：```java char ch = 'a';char uppercaseChar = Character.toUpperCase(ch); //将字符转换为大写 char lowercaseChar = Character.to...