import java.io.FileNotFoundException;

import java.io.IOException;

public class StringProblem {

public static void main(String args[]) throws FileNotFoundException, IOException {

String str = "Thes code for the sring problem";

System.out.println("Method 1: " + replaceString1(str));

System.out.println("Method 2: " + replaceString2(str));

}

public static String replaceString1(String str) {

char[] strChars = str.toCharArray();

for (int i = strChars.length - 1; i >= 0; i--) {

if (strChars[i] == 's')

str = str.replace("s","");

}

return str;

}

public static String replaceString2(String str) {

char[] strChars = str.toCharArray();

for (int i = 0; i <= strChars.length-1; i++) {

if (strChars[i] == 's')

strChars[i] = ' ';

}

String output = new String(strChars);

return output;

}

}