字符串操作
课程：JAVA · 编程练习
Java编程练习 - 字符串操作
练习内容
class Main {\n public static void main(String[] args) {\n String text = "Hello Java";\n\n System.out.println("原字符串: " + text);\n System.out.println("转大写: " + text.toUpperCase()
课程：JAVA · 编程练习
Java编程练习 - 字符串操作
class Main {\n public static void main(String[] args) {\n String text = "Hello Java";\n\n System.out.println("原字符串: " + text);\n System.out.println("转大写: " + text.toUpperCase()