CareerCup

BufferedReader read = new BufferedReader();
String line=read.readLine();
int numberOfLetters =line.lenght();
for(int i=0;i<n;i++)
{
if(line.charAt(i)=='a'){
if(line.charAt(i+1)!='\s' || line.charAt(i-1)!=''\s')line.replace('a','one');
}
}

get(cin, str);
char check[str.length()];
// for loop to convert str to char array
// for loop to check each element
// check if preceeded n followd by a space & replace.
// print array after replacement.

int length = str.length();
	cout<<"original String = "<<endl<<str<<endl;
	for(int i = 0 ; i<length ; i++)
	{
		//cout<<"at "<<i<<str.at(i)<<endl;
		if((str.at(i) == 'a') && (str.at(i-1) == ' ') && ((str.at(i+1) == ' ') || (str.at(i+1) == '.') || (str.at(i+1) == '!') || (str.at(i+1) == '?')))
		{
			str.replace(i,1, "one");
		}
	}

	cout<<"result String = "<<endl<<str;
	getchar();

String str = "thias a not a bill";
String result = str.replaceAll("\\ a "," one ");

public class StringReplacer {
	
	public static String stringReplacer(String input){
		StringBuffer output = new StringBuffer();
		for(int i =0;i < input.length();i++){
			System.out.println("In for loop");
			if(input.charAt(i)=='a' || input.charAt(i)=='A'){
				if( ( ( (i-1)>= 0 && !validateChar(input.charAt(i-1)) ) || (i-1)<0 ) &&
						( ( (i+1)< input.length() && !validateChar(input.charAt(i+1)) ) || (i+1)>= input.length() )  ) {
					output.append("the");
				}else{
					output.append(input.charAt(i));
				}
			}else{
				output.append(input.charAt(i));
			}
		}
		System.out.println(output);
		return output.toString();
	}
	
	public static boolean validateChar(char c){
		if((c >= 'A' && c >= 'Z' ) || (c >= 'a' && c >= 'z' )){
			return true;
		}
		return false;
	}
	
	public static void main(String[] args){
		stringReplacer("A boy a is agood a");
	}
	

}

<pre lang="" line="1" title="CodeMonkey74074" class="run-this">import java.util.regex.*;

class Question9 {

public static void main(String[] args) {

String input = "This is a Ferrari, a fine automobile.";
String regex = "\\ba\\b";
\\Regex looking for the character a

Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(input);

String processed = m.replaceAll("one");

System.out.println(processed);

}

}
</pre><pre title="CodeMonkey74074" input="yes">
</pre>

public static String replace(String input)
{
StringBuilder sb = new StringBuilder();
if(input != null && input.length() == 0)
return "";
char[] a = input.toCharArray();
if((a[0] == 'a' || a[0] == 'A') && a[1] == ' ')
{
sb.append("one");
}
else
{
sb.append(a[0]);
}
int i=1;
while(i< a.length - 1)
{
if((a[i] == 'a' || a[i] == 'A') && a[i-1] == ' ' && a[i+1] == ' ')
{
sb.append("one");
}
else
{
sb.append(a[i]);
}
i++;
}
if((a[i] == 'a' || a[i] == 'A') && a[i-1] == ' ')
{
sb.append("one");
}
else
{
sb.append(a[i]);
}
return sb.toString();

}

Python working code.

"""
9:15
@Python 2.7


replace a to one

- Anonymous on May 25, 2010 Report Duplicate | Flag 
"""

class AtoOne(object):
  def __init__(self, inputs):
    if inputs is None:
      print 'Invalid inputs'
      raise SystemExit
      
    self._inputs = inputs
   
  def __repr__(self):
    return self._inputs
    
  def replace(self, fromChar, toChar):
    output = self._inputs.split()
    for i in range(len(output)):
      if output[i] == fromChar:
        output[i] = toChar
      else:
        continue
    
    self._inputs = ' '.join(output)
    
if __name__ == '__main__':
  sen = AtoOne('A quick brown fox jumped over a bridge on a box. ')
  sen.replace('a', 'one')
  sen.replace('A', 'One')
  print sen