public static void main(String[] args)
{
System.out.println("请输入英语片段,以';'结束:");
Scanner scanner = new Scanner(System.in);
String str = "";
int dc = 0;
int zc = 0;
int jc = 0;
while(scanner.hasNext())
{
str = scanner.next();
zc += str.length();
dc++;
System.out.println(str);
if (str.contains("."))
{
jc += 1;
}
if (str.contains(";"))
{
break;
}
}
// scanner.
System.out.println("单词个数为:" + dc);
System.out.println("字母数为：" + (zc - 1));
System.out.println("句数为:" + jc);
}
扩展资料：
import java.io.*;
public class test
{ public static void main(String[] args) throws IOException
{ System.out.print("请输入一串字母:");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in))；
String str=br.readLine();
int char1=0,letter=0,sentence=0;
for(int i=0;i<str.length();i++)
{
char ch = str.charAt(i);
if(ch!=' ')
{ char1++;
}
if(ch==' '||ch=='/n')
{ //有空格,加一单词
if(i!=0&&str.charAt(i-1)!=' ')
letter++;
}
if(ch=='?'||ch=='!'||ch=='.')
{ sentence++;
}
}
System.out.println("字符数："+char1);
System.out.println("单词个数:"+letter);
System.out.println("句子数:"+sentence)；
}
}
import java.io.*;
public class test
{ public static void main(String[] args) throws IOException
{ System.out.print("请输入一串字母:");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String str=br.readLine();
int char1=0,letter=0,sentence=0;
for(int i=0;i<str.length();i++)
{
char ch = str.charAt(i);
if(ch!=' ')
{ char1++;
}
if(ch==' '||ch=='/n')
{ //有空格,加一单词
if(i!=0&&str.charAt(i-1)!=' ')
letter++;
}
if(ch=='?'||ch=='!'||ch=='.')
{ sentence++;
}
｝
System.out.println("字符数："+char1);
System.out.println("单词个数:"+letter);
System.out.println("句子数:"+sentence);
}
}
{
Scanner s1=new Scanner(System.in);
System.out.println("请输入一段英文文字:");
String words=s1.nextLine();
CheckWords(words);
}
public static void CheckWords(String words)
{
int juzi=0,danci=0;
for(int i=0;i<words.length();i++)
{
if(words.charAt(i)=='.' || words.charAt(i)=='!' || words.charAt(i)=='?')
{
juzi++;
}
if(words.charAt(i)==' ')
{
danci++;
}
}
System.out.println("句子"+juzi+"个,单词"+danci+"个.");
}追问
CheckWords(words);
显示错误，怎么回事？
{
System.out.println("请输入英语片段,以';'结束:");
Scanner scanner = new Scanner(System.in);
String str = "";
int dc = 0;
int zc = 0;
int jc = 0;
while(scanner.hasNext())
{
str = scanner.next();
zc += str.length();
dc++;
System.out.println(str);
if (str.contains("."))
{
jc += 1;
}
if (str.contains(";"))
{
break;
}
}
// scanner.
System.out.println("单词个数为:" + dc);
System.out.println("字母数为：" + (zc - 1));
System.out.println("句数为:" + jc);
}追问
大师， while(scanner.hasNext()) 怎么理解，没学过，求解释
追答读取屏幕所输入的单词，以空格为组！如how are you? scanner.hasNext()) 就是3次
本回答被提问者采纳import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegXp {
/**
* 计算单词总数
* @param s
*/
public int countWord(String s) {
s = s.trim();
Pattern pattern = null;
String str = "\\s";
pattern = Pattern.compile(str);
Matcher m = pattern.matcher(s);
int i = 0;
while (m.find()) {
i++;
}
return i + 1;
}
/**
* 计算句子总数
* @param s
* @return
*/
public int countStatement(String s) {
s = s.trim();
Pattern pattern = null;
String str = "[.!?]{1}";
pattern = Pattern.compile(str);
Matcher m = pattern.matcher(s);
int i = 0;
while (m.find()) {
i++;
}
return i;
}
/**
* 计算字符总数
* @param s
* @return
*/
public int countChar(String s) {
s = s.trim();
Pattern pattern = null;
String str = "\\S";
pattern = Pattern.compile(str);
Matcher m = pattern.matcher(s);
int i = 0;
while (m.find()) {
i++;
}
return i;
}
/**
* 入口函数
* @param args
*/
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
RegXp rx = new RegXp();
int _char, _stmt, _word;
_char = rx.countChar(s);
_stmt = rx.countStatement(s);
_word = rx.countWord(s);
System.out.println("字符总数:" + _char);
System.out.println("句子总数:" + _stmt);
System.out.println("单词总数:" + _word);
}
}
