How to convert string to array of integers in java?

You can convert a String to integer using the parseInt() method of the Integer class. To convert a string array to an integer array, convert each element of it to integer and populate the integer array with them.

Example

 Live Demo

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)); } }

Output

[123, 345, 437, 894]