摘要:
selection dose not contain a main type解决办法:main忘记加static 阅读全文
摘要:
找到windows 》preferences 》General 》Appearance 》color and fonts 》basic 》textfont 》编辑即可 阅读全文
摘要:
查看jdk public class rr{ public static void main(String[] args) {String arch = System.getProperty("sun.arch.data.model"); System.out.println(arch); }} 查 阅读全文