cast string array to int array java code example

Example 1: convert array string to number

// CONVERT ARRAY STRING TO ARRAY NUMBER
const arrStr = ["1", "3", "5", "9"];
const nuevo = arrStr.map((i) => Number(i));
console.log(nuevo);
// [1,3,5,9];

Example 2: java convert string to int array

import java.util.Arrays;
public class StringToIntegerArray {
   public static void main(String args[]) {
      String [] str = {"123", "345", "437", "894"};
      int size = str.length;
      int [] arr = new int [size];
      for(int i=0; i<size; i++) {
         arr[i] = Integer.parseInt(str[i]);
      }
      System.out.println(Arrays.toString(arr));
   }
}

Example 3: convert string to int array

char c = '2';
int asInt = c - '0';
//asInt = 2

Example 4: how to convert array to int

int i, k = 0;
for (i = 0; i < n; i++)
    k = 10 * k + a[i];

Example 5: java convert string array to int array

int[] intArray = convertStringArrayToIntArray(numbers.split(", "));