Java学习-专家术语学习机

简单的说，它是由2组单字随机挑出来排列组合然后产生随机数输出。

public class PhraseOMtic
{
    public static void main(String[] args)
    {
        // TODO Auto-generated method stub
//随意加上其他术语
        String[] wordListOne={"24/7","multiTier","3000 foot","B-to-B","win-win","frontend","web-based","pervasive","smart","six-sigma","critical-path","dynamic"};
        String[] wordlistTow={"empowered","sticky","value-added","oriented","centric","distributed","clustered","branded","outside-the-box","positioned","networked","focused","leveraged","aligned","targete","shared","cooperative","accelereted"};
        //计算每组有多少个名词术语
        int oneLength=wordListOne.length;
        int towLength=wordlistTow.length;
        
        //产生随机数
        int rand1=(int)(Math.random()*oneLength);
        int rand2=(int)(Math.random()*towLength);
        
        //组合出专家术语
        String phrase=wordListOne[rand1]+""+wordlistTow[rand2]+"";
        
        //输出
        System.out.println("what we need is a "+phrase);
        
    }

}

1.第一步是创建出两个String的数组，也就是保存术语的容器。数组的声明和创建很简单，格式为：

String[] pets={“wo”,“shi”};

每个元素之用逗号隔开

2.为了要在每个数组中能够随机挑出一个单词，我们要知道数组的长度，如果某个数组的长度为14，我们则需要0~13的随机数（Java的数组从零开始，第一个元素的引用是0，第二个是一，在长度为14的数组中最后一个数的引用为13）。你可以像数组查询长度：

int x=pets.length;

3.我们需要2个随机数。Java本身提供产生随机数的函数random（），这个方法的返回值介于0~1之间，所以我们需要将此值乘以数组的长度，然后取整治，如果是浮点数则要进行强制类型转换。

4.将随机产生的随机数符合一个值，然后输出，两个随机数之间用+链接。