I created this function that is supposed to replace all the white space within a string with the string "%20". ie: "Mr John Smith" becomes "Mr%20John%20Smith". To accomplish this, I placed all the characters of the string into an array and attempted to loop through, replacing any instance of " " with "%20". For some reason, the code I wrote doesn't seem to recognize the " " value within the list and skips over this part of my loop. So instead of getting a new String with the white spaces replaced, I simply get back the same string with the white spaces intact. Can anyone help correct my error? I ran it through the Java Tutor to visualize my code and it reflected this same error
import java.util.ArrayList;
public class Interview {
public static void main(String[] args) {
Interview theFunc = new Interview();
String d = "Mr John Smith ";
System.out.print(theFunc.URLify(d, 13));
}
public String URLify(String str, int x){
String result = "";
String real = str.substring(0,x);
String [] list = new String[real.length()];
int i = 0;
while (i != real.length()) {
list[i] = real.substring(i,i+1);
i = i +1;
}
int b = 0;
while (b < list.length) {
if (list[b] == " ") {
list[b] = "%20";
b = b + 1;
}else{
b = b + 1;
}
}
int d = 0;
while (d != list.length) {
result = result + list[d];
d =d + 1;
}
return result;
}
The error is occurring in the second while loop. Thanks!
