import org.springframework.util.StringUtils;
public class Test04 {
public static void main(String[] args) {
// 首字母转大写
System.out.println(StringUtils.capitalize("abc"));
// 首字母转小写
System.out.println(StringUtils.uncapitalize("ABC"));
}
}
Abc
aBC
参考:https://blog.csdn.net/w995223851/article/details/126625891