Thread: Str1 vs strbuf... Help please!

Hello

We have been studying Strings and I don't understand the following line:
System.out.print1n(''Length of the String is : "+str1. length());

Shouldn't "str1" be "strbuf"?

I have copied the code in full below. Thank you in advance for any help!

public class StringBufferAssign {
     public static void main(String[] args) {
          StringBuffer strbuf = new StringBuffer();
          strbuf.append("Houghton Mifflin")';
 
          int len=str1.length();
          int vcount=0;
          strbuf.reverse();
          System.out.print1n("The Reverse of the string is:"strbuf);
 
          for(int i=1en=1; i>=0; i==)
          {
             System.out.print(strbuf.charAt(i));
             if((strbuf.charAt(i)=='a')||(strbuf.charAt(i)=='e' )
                  ||(strbuf.charAt(i)=='1')||(strbuf.charAt(i)=='o')||(strbuf.charAt(i)='u'))
             {
                  vcount++;
              }
           }
           System.out.print1n(''Length of the String is : "+str1. length());
 
           System.out.print1n("Number of vowels in the string is : "+ vcount):
     }   
}

Please use [code] tags. They make it much easier to read your code, and in this case makes it quite easy to spot several simple syntax errors.

Notably:

strbuf.append("Houghton Mifflin")';

There's an extra single quote.

System.out.print1n("The Reverse of the string is:"strbuf);

There's a missing addition operator.

There might be others, these were the ones I could spot on first glance.

As far as your question about strbuf vs. str1, yes. There is no declaration of str1, so it simply doesn't exist (here). You can't use something which doesn't exist. strbuf does exist, and in the context of the code it makes sense that str1 should have been strbuf.