stringtokenizerdemo.java

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import java.util.*;
public class StringTokenizerDemo 
{
	public static void main(String[] args) 
	{
		String str1 = "Hello world!This is Java code,stringTokenizer Demo.";
		//声明并初始化字符串str1
		String str2 = "How to use StringTokenizer?StringTokenizer?";
		//声明并初始化字符串str2
		StringTokenizer strT1 = new StringTokenizer(str1," ,.!");
		//创建StringTokenizer类的对象strT1,并构造字符串str1的分析器
		//以空格符、","、"."及"!"作为定界符
		StringTokenizer strT2 = new StringTokenizer(str2," ?");
		//创建StringTokenizer类的对象strT2,并构造字符串str2的分析器
		//以空格符及"?"作为定界符
		int num1 = strT1.countTokens();
		//获取字符串str1中语言符号的个数
		int num2 = strT2.countTokens();
		//获取字符串str2中语言符号的个数
		System.out.println("str1 has "+num1+" words.They are:");
		while(strT1.hasMoreTokens())
		{   //利用循环来获取字符串str1中下一个语言符号,并输出
			String str = strT1.nextToken();
			System.out.print("\""+str+"\" ");
		}
		System.out.println("\nstr2 has "+num2+" words.They are:");
		while(strT2.hasMoreTokens())
		{   //利用循环来获取字符串str2中下一个语言符号,并输出
			String str = strT2.nextToken();
			System.out.print("\""+str+"\" ");
		}		
	}
}