java 练习7 生成句子

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题例要求

编写一个采用随机函数生成句子的游戏。现有四个字符串数组：article,noun,verb,preposition,他们的内容分别是:
the、a、one、some、any；
boy、girl、dog、town、car；
drove、jumped、ran、walked、skipped；
to、from、over、under、on；
依据句法要求：article+noun+verb+preposition+article+noun，编写程序以产生二十个句子

java实现

public class sentence {
	public static void main(String args[])
	{	
		//用字符串数组存放四组单词
		String article[]={"the","a","one","some","any"},
				noun[]= {"boy","girl","dog","town","car"},
				verb[]= {"drove","jumped","ran","walked","skipped"},
				preposition[]= {"to","from","over","under","on"};
		
		for(int jj=0;jj<20;jj++)     //循环二十次,输出二十个句子
		{	//用Math.random函数产生[0,1)的随机数,乘5取整作为数组随机下标
			System.out.println("第"+(jj+1)+"个句子: "
								+article[(int)(Math.random()*5)]+" "
								+noun[(int)(Math.random()*5)]+" "
								+verb[(int)(Math.random()*5)]+" "
								+preposition[(int)(Math.random()*5)]+" "
								+article[(int)(Math.random()*5)]+" "
								+noun[(int)(Math.random()*5)]);
		}
		
	}

}