/*			ESc101 Laboratory Assignment 
	                   Thursday of Week of 20/09/04 

 This program checks whether  string 1 is a subset of string 2. 

*/
 import javabook.*;
 import java.awt.*;
 class SubstrCheck
 {
       StringBuffer str1, str2;
       MainWindow mainWindow;
       InputBox inputBox;
 // This method takes two string inputs from  user and checks whether
 // str1 is a substring of str2.
       public void checkString()
       {
             String temp1, temp2;
             int strLength1, strLength2, index1, index2;
             inputBox = new InputBox(mainWindow);
             temp1 = inputBox.getString("Input the first string"); 
             temp2 = inputBox.getString("Input the second string"); 
             str1 = new StringBuffer(temp1); 
             str2 = new StringBuffer(temp2);
             strLength1 = str1.length(); 
             strLength2 = str2.length(); 
             for(index1=0, index2=0; index2 < strLength2; index2++)
             {
                   if (str1.charAt(index1) == str2.charAt(index2))
                         index1++;  // We can advance in str1
                   if (index1 < strLength1)
                         continue; // str1 is not finished
                   else
                         break;
             }
             if (index1 == strLength1)
                   System.out.println(" First string is a subset of second string ");
             else
                   System.out.println(" First string is not a subset of second string ");
       }
 }    
             
 class soln7thur2
 {
       public static void main(String[] args)
       {
             SubstrCheck substrCheck;
             substrCheck = new SubstrCheck();
             substrCheck.checkString(); 
       }
 }