SmileyCount.java 1/4Java Programming 2014Course Code: EBU4201Mini ProjectTask 1 [30 marks]SmileyCount is a simple application used by children to practise their counting and adding skills(see Figure 1).Figure 1 First launch with some input values ent…
1. Both main memory and secondary storage are types of memory. Describe the difference between the two. 2. What is the difference between system software and application software? 3. Why must programs written in a high-level language be translated i…
忘记在哪里看到一个面试题:把int a,b的值互换,不能使用临时变量.刚开始完全懵逼,脑子里面全是浆糊,不知道如何下手.查看答案后猛地一惊,心想居然还有这种操作,真是叹为观止,真的感觉自己的基础是如此的薄弱.我们一直在追逐着各种狂拽,酷炫,吊炸天的框架,技术,以及各种库,并且乐此不疲总以为学到这些技术就有去吹牛的资本,就可以拿到高工资.其实可能,很有可能你连最基本一些编程知识都没掌握好.当然我也是其中一个,这次就系统学习下基本编程中的按位运算!下面是上面面试题的答案: public void s…
by2016.9.8 2.7.1 一维数组 1. 声明 int[] m: char[] c: double[] d: 2. 创建 数组声明之后还不能使用,m = new int[10]: c = new char[15]: d = new double[50]: 补充. 声明和创建可以合并 int[] m = new int[10]: char[] c = new char[15]: double[] d = new double[50]: 3. 引用数组的元素 数组的下标值可以是常量也…
This assignment will help you practice and understand better the Binary Tree and Binary Search Tree data structures, their operations and implementations. You are to design a small dictionary using the Binary Search Tree data structure. Each entry ma…
阿里云CentOS收不到邮件 在crontab里配置执行脚本,脚本用来执行java程序,死活不执行.单独执行脚本可以运行. 查看crontab的日志文件,/var/log/cron,发现没有收到cron执行的mail,说: " fatal: parameter inet_interfaces: no local interface found for ::1" 猜测是网卡的问题,百度之后发现是ipv6的鬼.修改方法: 修改/etc/postfix/main.cf,注释掉 inet_in…
