Reputation: 23
Android ArrayList of int
I'm new with android and java, so I apologize if what I say is not entirely correct. In my application I'd like to convert an ArrayList to integer to increase each value with a +1. Please note the commented out part to understand where is my problem. I can't find the right way.. This is what I do for now:
public String mRequest(String mUrl, String mAuth, String mParam, String customerId, ArrayList filter) {
InputStream mStreamResponse;
String mString = null;
try {
URL obj = new URL(mUrl);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("GET");
con.setRequestProperty("Authorization", mAuth);
con.setRequestProperty("X-Limit", String.valueOf(xLimit));
con.setRequestProperty("X-Skip", String.valueOf(xSkip));
con.setRequestProperty("X-Sort", "{\"created\":-1}");
String parameters = null;
System.out.println("Value of mParam -> " + mParam);
if (mParam != null && customerId != null) {
Log.e("ERROR", "Ricerca per parametro e customerId");
} else if (mParam != null) {
parameters = "\"number\":{\"$regex\":" + mParam + "}";
} else if (customerId != null) {
parameters = "\"customer.id\":{\"$eq\":" + "\"" + customerId + "\"" + "}";
} else {
parameters = "\"number\":{\"$regex\":\"\"}";
}
System.out.println("parameters");
System.out.println(parameters);
if (filter != null) {
//convert ArrayList to Array
Object[] mArray = filter.toArray();
String filterGroup = mArray[0].toString() + ".id";
System.out.println("Group selected -> " + filterGroup);
for (int i = 1; i < mArray.length; i++) {
System.out.println("Value -> " + mArray[i]);
}
String pFilter = null;
for (int i = 1; i < mArray.length; i++) {
/*
*
* This is where I need to change value in
* pos i with i + 1
*
*/
switch (mArray[i].toString()) {
case "0":
mArray[i] = "1";
break;
case "1":
mArray[i] = "2";
break;
case "2":
mArray[i] = "3";
break;
case "3":
mArray[i] = "4";
break;
case "4":
mArray[i] = "5";
break;
case "5":
mArray[i] = "6";
break;
case "6":
mArray[i] = "7";
break;
case "7":
mArray[i] = "8";
break;
case "8":
mArray[i] = "9";
break;
case "9":
mArray[i] = "10";
break;
case "10":
mArray[i] = "11";
break;
case "11":
mArray[i] = "12";
break;
case "12":
mArray[i] = "13";
break;
}
if (mArray.length == 2){
pFilter = mArray[i].toString();
} else {
if (mArray[i] != mArray[mArray.length - 1]) {
if (pFilter != null) {
pFilter = pFilter + mArray[i].toString() + ",";
} else {
pFilter = mArray[i].toString() + ",";
}
} else {
pFilter = pFilter + mArray[i].toString();
}
}
}
String mFilter = "[" + pFilter + "]";
System.out.println("Insert value in a string -> " + mFilter);
String tempParam = null;
if (filterGroup.equals("assignee")) {
tempParam = "{\"$eq\":" + mFilter + "}";
} else {
tempParam = "{\"$in\":" + mFilter + "}";
}
//Override the value with the same filterGroup
if (filterMap.containsKey(filterGroup)) {
String toOverride = filterGroup;
filterMap.remove(filterGroup);
filterMap.put(toOverride, tempParam);
} else {
filterMap.put(filterGroup, tempParam);
}
//iterate
for (Map.Entry<String, String> entry : filterMap.entrySet()) {
switch (entry.getKey()) {
case "status.id":
status = "\"" + entry.getKey() + "\":" + entry.getValue();
break;
case "queue.id":
queues = "\"" + entry.getKey() + "\":" + entry.getValue();
break;
case "type.id":
types = "\"" + entry.getKey() + "\":" + entry.getValue();
break;
case "severity.id":
severities = "\"" + entry.getKey() + "\":" + entry.getValue();
break;
case "assignee.id":
mytickets = "\"" + entry.getKey() + "\":" + entry.getValue();
break;
}
}
filterMapValues = parameters ;
if (status != null) {
filterMapValues += ", " + status;
}
if (queues != null) {
filterMapValues += ", " + queues;
}
if (types != null) {
filterMapValues += ", " + types;
}
if (severities != null) {
filterMapValues += ", " + severities;
}
if (mytickets != null) {
filterMapValues += ", " + mytickets;
}
String myFilter = "{" + filterMapValues + "}";
System.out.println("myFilter -> " + myFilter);
//setup request header
con.setRequestProperty("X-Filter", myFilter);
} else {
String xFilter = "{\"status.id\":" + statusAll + ", \"queue.id\":" + queueAll + ", \"type.id\":" + typeAll + ", \"severity.id\":" + severityAll + "," + parameters + "}";
con.setRequestProperty("X-Filter", xFilter);
System.out.println("Reset all -> " + xFilter);
}
int responseCode = con.getResponseCode();
System.out.println("\nSending 'GET' request to URL : " + mUrl);
System.out.println("Response Code : " + responseCode);
mStreamResponse = con.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(mStreamResponse));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line).append('\n');
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
mStreamResponse.close();
} catch (IOException e) {
e.printStackTrace();
}
}
mString = sb.toString();
} catch (Exception e) {
}
return mString;
}
How can I do?
Thanks in advance.
Edit I started the for loop in pos #1 because in pos #0 I save filterGroup value, and that's a String, I need to menage as int only values in pos > 0
Upvotes: 1
Views: 1114
Answers (4)
Reputation: 600
Do follwoing
Step 1: Create a method
private List<Integer> stringToIncrementedString(ArrayList<String> stringArrayList){
List<Integer> arrayInt;
arrayInt = new ArrayList<Integer>();
for(int i=1 ;i<stringArrayList.size();i++)
arrayInt.add(Integer.parseInt(stringArrayList.get(i))+1);
return arrayInt;
}
Step 2 :Call this method from where you want.It will return the Arraylist with incremented value.
Upvotes: 0
Reputation: 4781
Can you try this please.
Remove your switch case inside for and replace it with below. Hope you want something like this.
for(int i=0; i<mArray.length(); i++){
mArray[i] = i+1;
}
let me know..
Upvotes: 0
Reputation: 1764
First off:
I'd like to convert an ArrayList to integer [...]
ArrayList<E> is a collection object with type E that can be any object or primitive. What you are really asking for is how to convert an ArrayList<String> (see that it is an ArrayList of type String) into an integer array. I can see you have already converted the ArrayList<String> into an Object[] (Object array that can hold both integers and Strings) using the following line in the example code given above:
Object[] mArray = filter.toArray();
Getting back to the original answer, this would do it:
int[] mArray = new int[filter.size()];
for (int i = 0; i < filter.size(); i++) {
int value = Integer.parseInt(filter.get(i));
mArray[i] = value++;
}
Upvotes: 1
Reputation: 2535
Your code is correct just change the for loop initial value to start from 0 rather than 1 like this:
int tempValue = 0;
for (int i = 0; i < mArray.length; i++) {
{
// increasing your mArray value
tempValue = (Integer) mArray[i] + 1;
mArray[i] = tempValue;
//Rest of your code
}
Upvotes: 0
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