I would like to check if the current char is a blank space as i dont want to change that. So i would like to change all the letters like i do now, but keep the spaces.
e.g. "that man" with C = 2 should become "vjcv ocp".
thanks in advance :)
String initialString = yourString.getText().toString();
char[] chars = initialString.toCharArray();
for (int i = 1; i <= chars.length; i++) {
C = Integer.valueOf(ceasarNr);
chars[i-1] = characters.get((characters.indexOf(chars[i-1]) + C)%29);
}
String resultString = new String(chars);
krypteredeTekst.setText(resultString);
}
Just skip the iteration if the character is a space:
String initialString = yourString.getText().toString();
char[] chars = initialString.toCharArray();
for (int i = 1; i <= chars.length; i++) {
//Skip if it is space.
if chars[i-1] == ' ';
continue;
C = Integer.valueOf(ceasarNr);
chars[i-1] = characters.get((characters.indexOf(chars[i-1]) + C)%29);
}
String resultString = new String(chars);
krypteredeTekst.setText(resultString);
}
There is method for checking if char is blank space ->
String initialString = yourString.getText().toString();
char[] chars = initialString.toCharArray();
for (int i = 1; i <= chars.length; i++) {
C = Integer.valueOf(ceasarNr);
if(!Character.isWhitespace(chars.charAt(i-1)) {
chars[i-1] = characters.get((characters.indexOf(chars[i-1]) + C)%29);
}
}
String resultString = new String(chars);
krypteredeTekst.setText(resultString);
Related
i am a beginner.
I get String from SQLite.
WKT = cursor.getString(cursor.getColumnIndex(polygon));
WKT = WKT.replaceAll(",", ", ");
Its look like String = (1.00 2.00, 3.00 4.00, 5.00 6.00, .....).
How to switch it to String (2.00 1.00, 4.00 3.00, 6.00 5.00, ......).
Thanks.
try this
private static void testMethod() {
String result = "(A B, C D, E F)";
String resultTmp = result;
resultTmp = resultTmp.replace("(", "");
resultTmp = resultTmp.replace(")", "");
String[] aryResult = resultTmp.split(",");
String[] finalResult = reverseString(aryResult);
StringBuilder strBuilder = new StringBuilder();
for (int i = 0; i < finalResult.length; i++) {
String dfgf = strBuilder.toString().equals("") ? "" : ",";
strBuilder.append(dfgf);
strBuilder.append(finalResult[i]);
}
String newString = strBuilder.toString();
System.out.println("RESULT : " + newString);
}
public static String[] reverseString(String[] words)
{
String[] t = new String[words.length];
for (int i = 0; i < words.length; i++)
{
t[i] = "";
for (int j = words[i].length() - 1; j >= 0; j--)
t[i] += words[i].charAt(j);
}
return t;
}
Follow below steps
1)Split string with ","
2)User Reverse() function to reverse the string(AB->BA)
3)Store the result in to an array.
Repeat the step until you split the last entry from sql lite.
Try this logic,its working in c and c++.
int Groups = 1; // Count 1 for the first group of letters
for ( int Loop1 = 0; Loop1 < strlen(String); Loop1++)
if (String[Loop1] == ' ') // Any extra groups are delimited by space
Groups += 1;
int* GroupPositions = new int[Groups]; // Stores the positions
for ( int Loop2 = 0, Position = 0; Loop2 < strlen(String); Loop2++)
{
if (String[Loop2] != ' ' && (String[Loop2-1] == ' ' || Loop2-1 < 0))
{
GroupPositions[Position] = Loop2; // Store position of the first letter
Position += 1; // Increment the next position of interest
}
}
try this..
private static void testTwo() {
String result = "(1.00 2.00, 3.00 4.00, 5.00 6.00)";
String resultTmp = result;
resultTmp = resultTmp.replace("(", "");
resultTmp = resultTmp.replace(")", "");
String[] aryResult = resultTmp.split(",");
for (int i = 0; i < aryResult.length; i++) {
String str = aryResult[i].trim();
String[] sdf = str.split(" ");
aryResult[i] = reverseArray(sdf);
}
String strResult = Arrays.toString(aryResult).replace("[", "(").replace("]", ")");
System.out.println("RESULT : " + strResult);
}
public static String reverseArray(String[] words)
{
for(int i = 0; i < words.length / 2; i++)
{
String temp = words[i];
words[i] = words[words.length - i - 1];
words[words.length - i - 1] = temp;
}
return ((Arrays.toString(words)).replace("[", "")).replace("]", "").replace(",", "");
}
#. If you want to swap sub-string, just use below method:
public String swapString(String str) {
str = str.replace("(", "");
str = str.replace(")", "");
String[] array = str.split(", ");
StringBuilder result = new StringBuilder();
result.append("(");
for (int i = 0; i < array.length; i++) {
String[] temp = String.valueOf(array[i]).split(" ");
result.append(temp[1]);
result.append(" ");
result.append(temp[0]);
if (i != array.length -1)
result.append(", ");
}
result.append(")");
return result.toString();
}
USE:
String yourString = "(1.00 2.00, 3.00 4.00, 5.00 6.00)";
Log.d("ARRAY", "Before Swap: " + yourString);
yourString = swapString(yourString);
Log.d("ARRAY", "After Swap: " + yourString);
OUTPUT:
D/ARRAY: Before Swap: (1.00 2.00, 3.00 4.00, 5.00 6.00)
D/ARRAY: After Swap: (2.00 1.00, 4.00 3.00, 6.00 5.00)
#. If you want to swap char, use below method:
public String swapChar(String str) {
// Convert string to char array
char[] array = str.toCharArray();
for (int i = 1; i < array.length - 1; i+=5) {
// Swap char
char temp = array[i];
array[i] = array[i+2];
array[i+2] = temp;
}
return String.valueOf(array);
}
USE:
String yourString = "(A B, C D, E F, G H, I J)";
Log.d("ARRAY", "Before Swap: " + yourString);
yourString = swapChar(yourString);
Log.d("ARRAY", "After Swap: " + yourString);
OUTPUT:
D/ARRAY: Before Swap: (A B, C D, E F, G H, I J)
D/ARRAY: After Swap: (B A, D C, F E, H G, J I)
Hope this will help~
I'm attempting to iterate through the EditText "name" and check the letters so see if they match any of the letters in the objects of the array uNamesList.
If they do I want to break out of the loop and return the placement of the object that had the matching letter. At the moment I am getting this error, anyone know what might be wrong?
java.lang.StringIndexOutOfBoundsException: length=9; index=9
uNamesList.add("bob");
uNamesList.add("mike");
uNamesList.add("sike");
uNamesList.add("othername");
uNamesList.add("name");
public int getName(EditText name) {
String text = name.getText().toString();
for (int i = 0; i < text.length(); i++) { //i = current letter in text
char cLetter = name.toString().charAt(i);
for (int o = 0; o < uNamesList.size(); o++) {
String uName = (String)uNamesList.get(o);
char uLetter = uName.charAt(i);
if (cLetter == uLetter) {
match = o;
break;
}
}
}
return match;
}
You get the text inside edit text in wrong way. it should :
public int getName(EditText name) {
String text = name.getText(); //get the text
int match = 10;
for (int i = 0; i < text.toString().length(); i++) { //get the length of the text
for (int o = 0; o < uNamesList.size(); o++) {
char cLetter = name.toString().charAt(i);
String uName = (String)uNamesList.get(o);
Okay, here's the edit for another problem. i dont know if this what you want.
public int getName(EditText name) {
int match = 9999;
String text = name.getText().toString();
boolean found = false;
for (int i = 0; i < text.length(); i++) { //i = current letter in text
char cLetter = name.toString().charAt(i);
for (int o = 0; o < uNamesList.size(); o++) {
String uName = (String)uNamesList.get(o);
char uLetter = uName.charAt(i);
if (cLetter == uLetter) {
match = o;
found = true;
break;
}
}
if(found) break;
}
return match;
}
The simplest way is just only call return when it found.
public int getName(EditText name) {
int match = 9999;
String text = name.getText().toString();
for (int i = 0; i < text.length(); i++) { //i = current letter in text
char cLetter = name.toString().charAt(i);
for (int o = 0; o < uNamesList.size(); o++) {
String uName = (String)uNamesList.get(o);
char uLetter = uName.charAt(i);
if (cLetter == uLetter) {
return o;
}
}
}
return match;
}
change your for loop to the following, you accessing name from the uNameList loop where the length might be different
for (int i = 0; i < name.toString().length(); i++) {
char cLetter = name.toString().charAt(i);
for (int o = 0; o < uNamesList.size(); o++) {
For EditText you need GetText()
name.toString() gives you the java desciption of the object EditText
You are getting a StringIndexOutOfBoundsException most likely due to this line:
char uLetter = uName.charAt(i);
i in this case can be greater than the length of uName
I want to know how to hide some numbers in TextView and some are shown just like that
(****-****-1234)
Thank you
Try This Method...
public static String StrRpl(String str) {
char[] chars = str.toCharArray();
for (int i = 0, j = 0; i < chars.length && j < 5; i++) {
char ch = chars[i];
if (!Character.isWhitespace(ch)) {
chars[i] = '*';
j++;
}
}
str = new String(chars);
return str;
}
Output : *****234
pass a string to this method and it will return string with '*' character till first 5 characters (You can change your number of count.. current is 5)
How can i add "-" before each capital letter of my string apart from first capital letter of my string.
I have a string like this "HelloWorldMyNameIsCarl" and i am using this
"HelloWorldMyNameIsCarl".replaceAll("(.)(\\p{Lu})", "$1-$2")
it's working fine.
solution is
"Hello_World_My_Name_Is_Carl"
but for "THisForNEWTest" it's not working and solution is
"T-His-For-NEw-Test"
But i want
"T-His-For-N-Ew-Test"
please suggest me what i do for this problem.
thanks.
if there is a too complex problem for regular expressions, you can always use normal programming. it might even be a little bit more efficient :
public static String doIt(String input)
{
int size=input.length();
if(size==0)
return "";
StringBuilder sb=new StringBuilder(size);
sb.append(input.charAt(0));
for(int i=1;i<size;++i)
{
char c=input.charAt(i);
if(Character.isUpperCase(c))
sb.append('-');
sb.append(c);
}
return sb.toString();
}
in any case, for regular expressions tests, you can check out this website.
so, for regular expressions, the solution can be:
return input.charAt(0)+input.substring(1).replaceAll("(\\p{Lu})","-$1");
Why aren't you just doing this:
replaceAll("(\\p{Lu})", "-$1").replaceAll("^-", "")
Try Below Code:
String test = "THisForNEwTest";
int size = test.length();
StringBuffer sb = new StringBuffer();
if(size!=0)
sb.append(test.charAt(0));
for (int i = 1; i < size; i++) {
if(Character.isUpperCase(test.charAt(i))){
sb.append("-"+test.charAt(i));
}else{
sb.append(test.charAt(i));
}
}
System.out.println("result is::::"+sb.toString());
Try this:
public static String function(String str) {
StringBuilder result = new StringBuilder();
List<Integer> capital = new ArrayList<Integer>();
for (int i = 0; i < str.length(); i++)
if (Character.isUpperCase(str.charAt(i)))
capital.add(i);
int capIndex = 0;
int x = 0;
for (int y = 0; y < str.length(); y++) {
if(x < capital.size())
capIndex = capital.get(x);
if (y == 0) {
result.append(str.charAt(y));
x++;
} else if(y == capIndex){
result.append("-" + str.charAt(y));
x++;
} else {
if(str.charAt(y) != ' ')
result.append(str.charAt(y));
}
}
return result.toString();
}
i have string like these for example
309\306\308\337_338
309\306\337_338
310
311\315_316\336_337
311\315_316\336_337
311\335_336
these strings means list of page number , for example string "309\306\308\337_339" means
pages 309,306,308,337,338,339
i want to pass one of these string to function which return it as string like this
309,306,308,337,338,339
this function do that but in c# , i want to impalement in android
private static string Get_PageNumbers(string str)
{
ArrayList arrAll = new ArrayList();
MatchCollection match;
string[] excar;
string strid, firstNumber, lastlNumber;
int fn, ln;
ArrayList arrID = new ArrayList();
//***In Case The Range Number Between "_"
if (str.Contains("_"))
{
// match_reg = new Regex("(w?[\\d]+)*(_[\\d]+)");
Regex matchReg = new Regex("(w?[\\69]+_[\\d]+)*(q?[\\d]+//)*(a?[\\d]+_[\\d]+)*(y?[\\d]+)*");
match = matchReg.Matches(str);
int count = match.Count;
excar = new string[0];
for (int i = 0; i < count; i++)
{
Array.Resize(ref excar, count);
excar[i] = match[i].Groups[0].Value;
if (excar[i] != string.Empty)
arrID.Add(excar[i]);
}
//******IF Array Contains Range Of Number Like"102_110"
if (str.Contains("_"))
{
for (int i = 0; i < arrID.Count; i++)
{
strid = arrID[i].ToString();
if (arrID[i].ToString().Contains("_"))
{
int idy = strid.LastIndexOf("_");
firstNumber = strid.Substring(0, idy);
if (idy != -1)
{
lastlNumber = strid.Substring(idy + 1);
fn = int.Parse(firstNumber);
arrAll.Add(fn);
ln = int.Parse(lastlNumber);
for (int c = fn; c < ln; c++)
{
fn++;
arrAll.Add(fn);
}
}
}
else
{
arrAll.Add(arrID[i].ToString());
}
}
//******If Array Contain More Than One Number
if (arrAll.Count > 0)
{
str = "";
for (int i = 0; i < arrAll.Count; i++)
{
if (str != string.Empty)
str = str + "," + arrAll[i];
else
str = arrAll[i].ToString();
}
}
}
}
//***If string Contains between "/" only without "_"
else if (str.Contains("/") && !str.Contains("_"))
{
str = str.Replace("/", ",");
}
else if (str.Contains("\\"))
{
str = str.Replace("\\", ",");
}
return str;
}
I think this is easier to do with split function:
public static String Get_PageNumbers(String str) {// Assume str = "309\\306\\308\\337_338"
String result = "";
String[] pages = str.split("\\\\"); // now we have pages = {"309","306","308","337_338"}
for (int i = 0; i < pages.length; i++) {
String page = pages[i];
int index = page.indexOf('_');
if (index != -1) { // special case i.e. "337_338", index = 3
int start = Integer.parseInt(page.substring(0, index)); // start = 337
int end = Integer.parseInt(page.substring(index + 1)); // end = 338
for (int j = start; j <= end; j++) {
result += String.valueOf(j);
if (j != end) { // don't add ',' after last one
result += ",";
}
}
} else { // regular case i.e. "309","306","308"
result += page;
}
if (i != (pages.length-1)) { // don't add ',' after last one
result += ",";
}
}
return result; // result = "309,306,308,337,338"
}
For example this function when called as follows:
String result1 = Get_PageNumbers("309\\306\\308\\337_338");
String result2 = Get_PageNumbers("311\\315_316\\336_337");
String result3 = Get_PageNumbers("310");
Returns:
309,306,308,337,338
311,315,316,336,337
310
if i can suggest different implementation....
first, split string with "\" str.split("\\");, here you receive an array string with single number or a pattern like "num_num"
for all string founded, if string NOT contains "" char, put string in another array (othArr named), than, you split again with "" str.split("_");, now you have a 2 position array
convert that 2 strings in integer
now create a loot to min val form max val or two strings converted (and put it into othArr)
tranform othArr in a string separated with ","