comparing String.equals to space char?

[jfstarr]

Writing code that will take a Symbol and expand it into a sentence using basic grammar rules. I have included a copy of my code in text format (it will not compile because Telnet ate several lines) but it should give you an idea where I am going with the algorithm.

The bug that is sticking me is in my Extract_Category method. Probably in these three lines:

if(nextChar.equals(" ")

int end = i;
break;

The method accepts the String NAME VP and should iterate through the string and extract the substring NAME. However it iterates right through the space character and returns the whole string "NAME VP". Why would it not recognize the space character?

Here is most of my code

[jfstarr]

p.s. The nextChar variable is a String object converted from char to String earlier in the code.

Thanks for any help.

John

[jayceepoo]

You could try something like this:

if (string.charAt(counter) == ' ')

[jfstarr]

OK, I have a String object "john" that I am passing to a function Simple_String_Scan. Simple_String_Scan is supposed to pull off each character from the String and check to see if it is uppercase. If it finds an uppercase character in the String it should return False. Right now it returns out of bounds exception...


public static boolean Simple_String_Scan(String s){

boolean containsCategory = false;

for(int i = 0; i<= s.length(); i++){

String nextChar = String.valueOf(s.charAt(i));

if(nextChar.toUpperCase()==nextChar){

containsCategory = true;

break;

}//End of if statement



return containsCategory;

}//End of Simple_String_Scan

Below I have posted the results of six different String inputs to the function, Case 5 and 6 should have returned False.

BEGIN LOOP 1 String ="S"
The value returned from Simple_String_Scan for case 1 was true
BEGIN LOOP 2 String ="NAME VP"
The value returned from Simple_String_Scan for case 2 was true
BEGIN LOOP 3 String ="john V NP"
The value returned from Simple_String_Scan for case 3 was true
BEGIN LOOP 4 String ="john V a good teacher"
The value returned from Simple_String_Scan for case 4 was true
BEGIN LOOP 5 String ="john is a good teacher"
The value returned from Simple_String_Scan for case 5 was true
BEGIN LOOP 6 String ="john"
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String ind
ex out of range: 4
at java.lang.String.charAt(String.java:455)
at Generator.Simple_String_Scan(Generator.java:57)
at GenTest.main(GenTest.java:47)

Any help greatly appreciated. Thanks