sheldon

import java.util.Calendar; import java.util.InputMismatchException; import java.util.Locale; import java.util.Scanner; /** * Created by wangjunling on 7/15/14. */ public class PrintCalendar { p

/** * Created by wangjunling on 7/14/14. * 打印金字塔 */ public class PrintPyramid { /** * 打印数组 * @param ary */ private static void print(String[][] ary) { for (int i = 0

import java.util.HashMap; import java.util.Map; import java.util.Scanner; /** * */ public class Test3 { private static char[][] A = {{' ', ' ', ' ', 'A', ' ', ' ', ' '}, {' ', ' ',

java在语法级别上其实没有内存泄露，因为Java

1.在项目的pom中添加 build>     resources>                  resource>             directory>src/main/resourcesdirectory>             filtering>truefiltering>         resource>     resources> build>     profi

转自：http://doublekill.me/2016/11/04/java8%E6%96%B0%E7%89%B9%E6%80%A7/接口的默认方法和静态方法在接口中定义默认方法和静态方法：public interface DefaultInterface{ default void defaultFun(){ System.out.println("default func

转自：DOUBLEKILL.ME问题先看这段代码,使用Arrays.asList返回一个List,然后在list中增加一个对象，抛出java.lang.UnsupportedOperationException，意思是不支持这个操作。List<String> list = Arrays.asList("a","b","c","d","e"); System.out.println(list); li