public boolean nearHundred1(int n) {
  if (Math.abs(100-n) <= 10) {
    return true;
  }
  else if (Math.abs(200-n) <= 10) {
    return true;
  }
  else {
    return false;
  }
}

public boolean nearHundred2(int n) {
  if (Math.abs(100-n) <= 10 || Math.abs(200-n) <= 10) {
    return true;
  }
  else {
    return false;
  }
}

public boolean nearHundred3(int n) {
  return Math.abs(100-n) <= 10 || Math.abs(200-n) <= 10;
}

public boolean nearHundred(int n) {
  boolean near100 = Math.abs(100-n) <= 10;
  boolean near200 = Math.abs(200-n) <= 10;
  return near100 || near200;
}