用java编写应用程序,分析字符串,分别输出字符串的单词,并统计单词个数

Question

如题所述

Answer 1

public class StringTest {
public static void main(String[] args) {
//定义一个测试字符串
String testStr = "this is a test string";

//将该字符串按空格分解成单词数组
String[] words = testStr.split(" ");

//输出单词个数
System.out.println("该字符串一共有" + words.length + "个单词！");

//输出每一个单词
for (int i = 0; i < words.length; i++) {
System.out.println("该字符串的第" + (i+1) + "个单词是：" + words[i]);
}
}
}

Answer 2

public class Simple {
public static void main(String[] args) {
String str = "1231jaoja9[Bka";
int count = parse(str);
System.out.println("\r\n"+count);
}

public static int parse(String str){
int count = 0;
String regex = "[a-zA-Z]";
Pattern pattern = Pattern.compile(regex);

for(int i = 0;i<str.length();i++){
Matcher matcher = pattern.matcher(str.subSequence(i, i+1));
boolean b = matcher.matches();
if(b){
System.out.print(str.charAt(i)+" ");
count++;
}
}
return count;
}
}本回答被网友采纳

Answer 3

楼主你不是想要源码吧。首先，以字符数组形式接收键盘输入的字符串，然后逐个判断字符数组中的字符，遇到空格就代表单词数增加一