public class UserInfo {
  private String name, address, username, password;

  public UserInfo() {
    name = "";
    address = "";
    username = "";
    password = "";
  }

  public void setName(String name) {
    this.name = name;
  }

  public String getName() {
    return name;
  }

  public void setAddress(String address) {
    this.address = address;
  }

  public String getAddress() {
    return address;
  }

  public void setUsername(String username) {
    this.username = username;
  }

  public String getUsername() {
    return username;
  }

  public void setPassword(String password) {
    this.password = password;
  }

  public String getPassword() {
    return password;
  }

  public String encrypt(String s) { // encrypt method -- applying all other encryption methods to String s
    s = removeWhitespaceAndConvertToUpper(s);
    s = substitute(s);
    s = swapHalfsForEncrypt(s);
    s = swapFirst2WithLast2(s);
    s = swapMiddleChars(s);
    return s;
  }

  public String removeWhitespaceAndConvertToUpper(String s) {
    String trimmedStr = "";
    trimmedStr = s.trim(); // removes leading and trailing whitespace for String s
    return trimmedStr.toUpperCase(); // converts all letters in String to uppercase
  }

  public String substitute(String s) { // performs all listed ASCII character substitutions
    s = s.replace('A', '@');
    s = s.replace('E', '=');
    s = s.replace('I', '!');
    s = s.replace('J', '?');
    s = s.replace('O', '*');
    s = s.replace('P', '#');
    s = s.replace('R', '&');
    s = s.replace('S', '$');
    s = s.replace('T', '+');
    s = s.replace('V', '^');
    s = s.replace('X', '%');
    s = s.replace(' ', '_');
    return s;
  }

  public String swapHalfsForEncrypt(String s) {
    String swappedStr = s.substring(s.length() / 2, s.length()); // sets swappedStr to be second half of s
    swappedStr += s.substring(0, s.length() / 2); // concatenates swappedStr to first half of s, switching halves
    return swappedStr;
  }

  public String swapFirst2WithLast2(String s) {
    String swappedStr = s.substring(s.length() - 2); // sets swappedStr to be last two chars
    swappedStr += s.substring(2, s.length() - 2); // concatenates swappedStr with middle block of String
    swappedStr += s.substring(0, 2); // concatenates swappedStr to first two chars, switching first and last 2
    return swappedStr;
  }

  public String swapMiddleChars(String s) {
    String swappedStr = s.substring(0, (