Java 实例 - 字符串小写转大写

public class StringToUpperCaseEmp {
    public static void main(String[] args) {
        String str = "string itzixishi";
        String strUpper = str.toUpperCase();
        System.out.println("原始字符串: " + str);
        System.out.println("转换为大写: " + strUpper);
    }
}