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How to get a random value from a string array without repetition?

How to get a random value from a string array in android without repetition?
I have array in String.xml file as below -
<string-array name="msg">
<item>Cow</item>
<item>Pig</item>
<item>Bird</item>
<item>Sheep</item>
</string-array>
I am selecting random string by using following code -
String[] array = Objects.requireNonNull(context).getResources().getStringArray(R.array.msg);
String Msg = array[new Random().nextInt(array.length)];
Can anyone help me please? Thanks is advance...!

Can you just do something like this:
Collections.shuffle(copyOfArray);
Then loop through that?
for (int i = 0; i < copyOfArray.size(); i++) {
println(copyOfArray.get(i))
}

try this -
array = Objects.requireNonNull(context).getResources().getStringArray(R.array.msg);
//String msg = array[new Random().nextInt(array.length)];
LinkedList<String> myList = new LinkedList<String>();
for (String i : array)
myList.add(i);
Collections.shuffle(myList);
for (int i = 0; i < myList.size(); i++) {
String msg=myList.get(i);
}

Try this solution,
LinkedList<String> myList = new LinkedList<String>();
String[] words = { "Cow", "Pig", "Bird", "Sheep" };
for (String i : words)
myList.add(i);
Collections.shuffle(myList);
Then,
sampleText.setText(myList.pollLast());
pollLast() in LinkedList will retrieves and removes the last element of this list, or returns null if this list is empty.

try this.
int max = array.length() - 1;
int min = 0;
String Msg = array[new Random().nextInt(max - min + 1) + min];

First convert your String resource array to ArrayList
Fill value from current ArrayList to HashSet and convert that HashSet to newly ArrayList
Now shuffle that new ArrayList

Split strings on string array

i have String Array like this:
String[] q1={"AAA-BBB","AAA-CCC","AAA-DDD"}
and i want result like this
temp={"BBB","CCC","DDD"}
i tried below code but the result is wrong
for(int i=0;i<q1.length;i++){
ArrayList<String> temp=new ArrayList<>(Arrays.asList(q1[i].split("AAA-")));
}

Try like this:
ArrayList<String> temp=new ArrayList<>();
for(int i=0;i<q1.length;i++){
String[] array = q1[i].split("-");
temp.add(array[1]);
}

You could use substring:
ArrayList<String> temp = new ArrayList<>();
for(int i=0; i<q1.length; i++){
temp.add(q[i].substring(q[i].indexOf('-') + 1, q[i].length()))
}

you find error Because you use split
Splits this string around matches of the given regular expression.
https://docs.oracle.com/javase/7/docs/api/java/lang/String.html
q1[i].split("AAA-")
in this line you got 2 result splited 0 = "" AND 1 = "BBB"
so you need to pick the sec result
you have multi Solution
like https://stackoverflow.com/a/50234408/6998825 said
String[] array = q1[i].split("-");
temp.add(array[1]);
//change this q1[i].split("AAA-") to
q1[0].substring(4)
if your AAA- is not going to change

Have you tried creating the ArrayList outside of the loop? As previously you were creating a new ArrayList for every element in your string array
ArrayList<String> temp = new ArrayList<>();
for(int i=0;i<q1.length;i++){
temp.add(q1[i].substring(4);
}
Assuming that "AAA-" is not going to change.

Array integer Android

ok so i create an array that has integers. The array displays five number from the min and max. How can i display all five numbers in a textview or edittext ? I tried:
nameofile.setText(al.get(x).toString());
but it only displays one?
ArrayList<Integer> al = new ArrayList<Integer>();
for (int i = minint; i <= maxint; i++)
al.add(i);
Random ran = new Random();
for (int i = 0; i < 5; i++) {
int x = al.remove(ran.nextInt(al.size()));
String myString = TextUtils.join(", ", al);
lottonumbers.setText(myString);

ArrayList<Integer> al = new ArrayList<Integer>();
al.add(0);
al.add(1);
al.add(5);
al.add(4);
al.add(3);
java.util.Collections.sort(al);//for sorting Integer values
String listString = "";
for (int s : al)
{
listString += s + " ";
}
nameofile.setText(listString);

You're currently only printing out one element (the one at index x). If you want to print them all in order, you can just join them using TextUtils.join().
Update: After seeing your edit, I think there's a better way to go about what you're trying to do. Instead of trying to pull the values one at a time, and update the list, why not just shuffle them, then use the above method?
Update 2: Okay, I think I finally understand your problem. Just a simple change, then.
ArrayList<Integer> al = new ArrayList<Integer>();
for (int i = minint; i <= maxint; i++)
al.add(i);
Random ran = new Random();
StringBuilder text = new StringBuilder(); // Create a builder
for (int i = 0; i < 5; i++) {
int x = al.remove(ran.nextInt(al.size()));
if (i > 0)
text.append(", "); // Add a comma if we're not at the start
text.append(x);
}
lottonumbers.setText(text);

al.get(x).toString() will only get the value at index "x". If you want to display all values, you need to combine all of the values from the array into a single string then use setText on that string.

You are only showing one number of your array in the TextView, you must to concat the numbers to see the others results like:
for(Integer integer : al) {
nameofile.setText(nameofile.getText() + " " + al.get(x).toString());
}
Then i think you can show all number in one String.

JSON Array of strings (no objects), extracting data

I have a long JSON string representing a string[] array being returned from a WCF service. The array elements are simply strings, they are not objects. This is an example of the return data
["1|ArrayElement1","2|ArrayElement2","3|ArrayElement3"..."n|ArrayElementn"]
I don't mind the index being included in the string, but I need to parse the strings into an ArrayList in Android so that I can adapt it to a ListView.
Since these technically aren't JSONObjects, how can I iterate over them and extract the string from each array element?

this is a valid JSON array of strings, you can parse it normally like this
JSONArray jsonStrings = json.getJSONArray("items");
String strings[] = new String[jsonStrings.length()];
for(int i=0;i<strings.length;i++) {
strings[i] = jsonStrings.getString(i);
}

Maybe this post can help you out:
JSON Array iteration in Android/Java
HashMap<String, String> applicationSettings = new HashMap<String,String>();
for(int i = 0; i < settings.length(); i++){
String value = settings.getJSONObject(i).getString("value");
String name = settings.getJSONObject(i).getString("name");
applicationSettings.put(name, value);
}
JSONArray names= json.names();
JSONArray values = json.toJSONArray(names);
for(int i = 0 ; i < values.length(); i++){
if(names.getString(i).equals("description")){
setDescription(values.getString(i));
}
else if(names.getString(i).equals("expiryDate")){
String dateString = values.getString(i);
setExpiryDate(stringToDateHelper(dateString));
}
else if(names.getString(i).equals("id")){
setId(values.getLong(i));
}
else if(names.getString(i).equals("offerCode")){
setOfferCode(values.getString(i));
}
else if(names.getString(i).equals("startDate")){
String dateString = values.getString(i);
setStartDate(stringToDateHelper(dateString));
}
else if(names.getString(i).equals("title")){
setTitle(values.getString(i));
}
}

Just to clarify, as I understand it you are receiving a JSON array of strings which are strings of valid JSON prefixed with the array index and a pipe character?
First, I would suggest contacting the creator of this abomination and lecturing them on violating standards. If they won't listen, talk to their bosses. This kind of thing is unacceptable in my opinion and needs to stop.
Second, I'd suggest doing something like this:
string[] element_strings = JSON.deserialize(WCF_string_result);
object[] elements = new object[element_strings.length];
for(int x = 0; x < elements.length; x++)
{
int pipeIndex = element_strings.indexOf("|");
elements[x] = JSON.deserialize(element_strings[x].substr(pipeIndex + 1));
}
Of course this assumes you have some kind of method for deserializing strings of JSON objects. If you don't I'd recommend using the built in library available in Android:
http://developer.android.com/reference/org/json/package-summary.html

If you want to extract specific value from it using Java8 stream on JSONArray. Then this code will help.
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import org.json.JSONArray;
public class JsonArrayTest {
public static void main(String[] args) {
System.out.println("Output - "+ getValue("[{\"id\":\"11\",\"username\":\"ABC\"},{\"id\":\"12\",\"username\":\"ABC\"}]\""));
System.out.println("Output - "+ getValue("[{\"id\":\"13\",\"username\":\"XYZ\"}]\""));
}
private static String getValue(String input) {
JSONArray jsonArray = new JSONArray(input);
return IntStream
.range(0, jsonArray.length()).mapToObj(obj -> jsonArray.getJSONObject(obj))
.filter(filterObj -> filterObj.getString("id") != null && "12".equals(filterObj.getString("id")))
.map(finalObj -> finalObj.getString("username")).collect(Collectors.joining(""));
}
}
Note: This is just an example how can you extract a specific value from JSONArry using stream APIs. You can change the filter condition or drop it according to your requirement.

Populate listview according to distance

I am using gooleplaces API. I have a response in json, but the problem is I want to populate listview according to distance. I make the sorted distance arraylist in ascending order using collections.sort(), but how do I sort other lists based on this sorted list to populate my listview correctly?

If you are creating separate lists, then you need to your define method, and if you are using list of single collection, or data structure, you can define your comparator, then call sort on this, list.

Finally I resolve my problem using bubble sort.
if (distanceList.size()>1) // check if the number of orders is larger than 1
{
for (int i=0; i<distanceList.size()-1; i++) // bubble sort outer loop
{
for (int j=0; j < distanceList.size()-1-i; j++) {
if (distanceList.get(j)>(distanceList.get(j+1)) )
{
int temp = distanceList.get(j);
distanceList.set(j,distanceList.get(j+1) );
distanceList.set(j+1, temp);
String temp1 = nameList.get(j);
nameList.set(j,nameList.get(j+1) );
nameList.set(j+1, temp1);
String temp2 = vicinityList.get(j);
vicinityList.set(j,vicinityList.get(j+1) );
vicinityList.set(j+1, temp2);
String temp3 = latList.get(j);
latList.set(j,latList.get(j+1) );
latList.set(j+1, temp3);
String temp4 = longList.get(j);
longList.set(j,longList.get(j+1) );
longList.set(j+1, temp4);
}
}
}
}