String s="7979, 333, 222, 9999";
I want to convert the String above to an array:
int[] con = {7979,333,222,999};
and use this array further
Here is my code:
Object[] array = arrayList.toArray();
String sta= (Arrays.toString(array));
String stb= sta.replaceAll("\\[", "").replaceAll("\\]","");
tv.setText(stb);
System.out.println(stb);
int[] numbers = Arrays.asList(numbersArray.split(","))
.stream()
.map(String::trim)
.mapToInt(Integer::parseInt)
.toArray();
You can split the string using .split() method and parse string into int using parseInt
int[] val = Arrays.stream(s.split(", ")).mapToInt(Integer::parseInt).toArray();
You can do it as follows:
import java.util.Arrays;
public class Main {
public static void main(String[] args) {
String s = "7979, 333, 222, 9999";
int[] nums = Arrays.stream(s.split("\\s*,\\s*")) // Split the string on comma preceded/followed by optional whitespace(s)
.mapToInt(e -> Integer.parseInt(e)) // Get an IntStream by mapping each string into an integer
.toArray(); // Convert the IntStream to array
System.out.println(Arrays.toString(nums));
}
}
Output:
[7979, 333, 222, 9999]
There are multiple method of String Class to achieve what you are trying, one of them is to use spit() method.
String s="7979, 333, 222, 9999";
String [] stringArray = s.split(",");
//or use followig to remove any blank spaces.
String[] stringArray = s.split("\\s*,\\s*");
int []con = new int[stringArray.length()]; //initialize int array
//iterate array to convert string to integer
for(int i=0; i<con.length();i++{
con[i] = Integer.parseInt(stringArray[i]);
}
int []con will have the desired results. There could be many other optimal ways as well to achieve the same.
Happy Coding!
Use the method split(",") to convert your string to an array of string separated by the coma value.
Then you should loop into your created array and add into an int list the result of Integer.parseint(your string)
I wont type any code so you keep searching a bit
