0916-java词法分析

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import java.util.Scanner;
public class Main {
    public static void main(String[] args) {

Scanner scanner = new Scanner(System.in); 
System.out.printf("请输入源代码"); 
String daima = scanner.next(); 
int i = 0; String c[] = {"begin", "if", "then","while", "do", "end", "id"}; 
String result="";  
String a=daima.substring(0,1); 
int s1=0; while ( "#".compareTo(a)!=0)
 {     while ( ".".compareTo(a)!=0) 
{          if(s1==1)
 {            result="";              s1=0;            }  
           result = result+a;    
                 i++;      
     a=daima.substring(i, i +1);
    } 
    s1=1;   
  System.out.println(result);
      for (int j = 0; j < 6; j++) {        
 if (result.compareTo(c[j])==0)
  {  int k=j+1;          
 System.out.println("<"+k+","+result+">");         }

    i++;    
 a=daima.substring(i,i+1);}
}
}

0916-java词法分析

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原文地址：http://www.cnblogs.com/zlcan/p/4823282.html