Android from string to string array - android

hi to all i have this code have this code which reads a some text and it extracts any strings between the '[' and ']' and it should print it on the screen
String lines[] = {addressString};
for (int i = 0; i < lines.length; i++) {
int be = lines[i].indexOf('[');
int e = lines[i].indexOf(']');
String fields = lines[i].substring(be+1, e);
}
my question is that i want to change the string "fields" to an array string so when i print it
i can print it as fields[0],fields[1],....etc until the end of the text....?
any suggestions...??
Thanks a lot


Is this what you mean?
String lines[] = {addressString};
String fields[] = new String[lines.length];
for (int i = 0; i < lines.length; i++) {
int be = lines[i].indexOf('[');
int e = lines[i].indexOf(']');
fields[i] = lines[i].substring(be+1, e);
}

Related

Getting an attribute from an object inside an arraymap

I'm creating a class called "partite", and this is the code
public class Partita {
String HT; //HomeTeam
String AT; //AwayTeam
String dataP; //dataPartita
int HG; //HomeGoal
int AG; //AwayGoal
String FTR; //Full time result
public Partita(){
this.HT = "";
this.AT = "";
this.dataP = "";
this.HG = 0;
this.AG = 0;
this.FTR = "";
}
public Partita(String HT, String AT, String dataP, int HG, int AG, String FTR) {
this.HT = HT;
this.AT = AT;
this.dataP = dataP;
this.HG = HG;
this.AG = AG;
this.FTR = FTR;
}
}
In the main activity I'm creating an ArrayList, putting a list of some "Partita" object, with attributes come from a json file, and then I create an ArrayMap and put the ArrayList inside, like this
for (int i = 0; i < arr.length(); i++) {
JSONObject jsonPart = arr.getJSONObject(i);
partite.add(new Partita(jsonPart.getString("HomeTeam"),
jsonPart.getString("AwayTeam"),jsonPart.getString("Date"),
jsonPart.getInt("FTHG"), jsonPart.getInt("FTAG"),
jsonPart.getString("FTR")));
partitemap.put(i, partite.get(i));
Log.i("partita", partite.get(i).HT + " " + partite.get(i).HG + ":" + partite.get(i).AG + " " + partite.get(i).AT);
}
How can I use the ArrayMap instead of ArrayList to get the attributes of an object and use it?

Use this instead (edited):
for (int i = 0; i < arr.length(); i++) {
JSONObject jsonPart = arr.getJSONObject(i);
partitemap.put(i, new Partita(jsonPart.getString("HomeTeam"),
jsonPart.getString("AwayTeam"),
jsonPart.getString("Date"),
jsonPart.getInt("FTHG"),
jsonPart.getInt("FTAG"),
jsonPart.getString("FTR")
)
);
Log.d("tag", partitemap.get(i).HT);
}

Android programming to convert a string array to double array

I need to convert a string array to double array in android. But my app is not getting executed on my device. It shows unfortunately stopped.Following is my code:
String dataa="0.121 0.547 0.875 0.245";
String delimiter = " ";
String spectrainstring[] = dataa.split(delimiter);
int size = spectrainstring.length;
double[] spectraldata={0.0};
for(int i=0;i<size;i++)
{
spectraldata[i]=Double.parseDouble(spectrainstring[i].toString());
}

String dataa = "0.121 0.547 0.875 0.245";
String delimiter = " ";
String spectrainstring[] = dataa.split(delimiter);
int size = spectrainstring.length;
double[] spectraldata = new double[size];
for (int i = 0; i < size; i++) {
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System.out.println(spectraldata[i]);
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How to get JSON data with two arrays in android

I want to get one array from PHP that one of the fileds is an array.
How can get basket's data with jsonArray and jsonObject ?
(In the code below, the basket is an array that contains 5 parameters).
It's my array:
[{"orderCode":11514,"orderDate":"2017/05/21","orderPrice":"1‌​9200","fullName":"Ja‌​ck","address":"addr 1","cellphone":"09151515730","basket":[{"b_qty":"4","pid":"8‌​","b_price":"9500","‌​b_discount":"10","ti‌​tle":"obj1"}]
Edit
String b_price ="";
String b_discount="";
String b_qty ="";
String ti‌​tle= "";
String pid="";
try
{
JSONArray jsonArray = new JSONArray(data);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object = jsonArray.getJSONObject(i);
String orderCode = object.getString("orderCode");
String orderDate = object.getString("orderDate");
String orderPrice = object.getString("orderPrice");
String fullName = object.getString("fullName");
String address = object.getString("address");
String cellphone = object.getString("cellphone");
JSONArray orderBasket = object.getJSONArray("basket");
for (int j = 0; j < orderBasket.length(); j++){
JSONObject object1 = orderBasket.getJSONObject(j);
b_qty = object1.getString("b_qty");
pid = object1.getString("pid");
b_price = object1.getString("b_price");
b_discount = object1.getString("b_discount");
ti‌​tle = object1.getString("ti‌​tle");
}
CustomOrderList customOrderList = new CustomOrderList(getApplicationContext());
customOrderList.orderCode.setText(orderCode);
customOrderList.orderDate.setText(orderDate);
customOrderList.orderTotalPrice.setText(orderPrice);
customOrderList.orderFullName.setText(fullName);
customOrderList.orderAddress.setText(address);
customOrderList.orderCellphone.setText(cellphone);
customOrderList.basketPrice.setText(b_price);
customOrderList.basketDiscount.setText(b_discount);
customOrderList.basketTitle.setText(ti‌​tle);
layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
linearOrders.addView(customOrderList);
}
} catch (JSONException e) {
e.printStackTrace();
}

for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object = jsonArray.getJSONObject(i);
String orderCode = object.getString("orderCode");
String orderDate = object.getString("orderDate");
String orderPrice = object.getString("orderPrice");
String fullName = object.getString("fullName");
String address = object.getString("address");
String cellphone = object.getString("cellphone");
//Now orderBasket is jsonArray
JSONArray orderBasket = object.getJSONArray("basket");
// So fetch all objects from orderBasket array
for (int j = 0; j < orderBasket.length(); j++){
JSONObject objectbsk = orderBasket.getJSONObject(j);
String b_qty = objectbsk.getString("b_qty");
String pid = objectbsk.getString("pid");
String b_price = objectbsk.getString("b_price");
String b_discount = objectbsk.getString("b_discount");
String ti‌​tle = objectbsk.getString("ti‌​tle");
// Create a orderBasket list for Basket with these keys also as you have created for CustomOrderList and use it
}
CustomOrderList customOrderList = new CustomOrderList(getApplicationContext());
customOrderList.orderCode.setText(orderCode);
customOrderList.orderDate.setText(orderDate);
customOrderList.orderTotalPrice.setText(orderPrice);
customOrderList.orderFullName.setText(fullName);
customOrderList.orderAddress.setText(address);
customOrderList.orderCellphone.setText(cellphone);
customOrderList.orderBasket.setText(orderBasket);
// here you can't do set text since it's jsonarray. So use basketlist to show the data`
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}

for loop overextending index

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

Check if next char in a string is a space

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);

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