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In how many ways we can convert a String to a character array using Java?
You can convert a String to a character array either by copying each element of the String to an array or, using the toCharArray() method.
Copying each element
Get the String to be converted.
Create an empty character array with the length of the String.
The charAt() method of the String class returns the character at a particular position. Using this method copy each character of the String to the array.
Example
import java.util.Arrays;
import java.util.Scanner;
public class StringToCharArray {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a String value: ");
String str = sc.next();
//Creating an empty array with the length of the String
char chArray[] = new char[str.length()];
//Copying each element of the String to the array
for(int i=0; i<str.length(); i++) {
chArray[i] = str.charAt(i);
}
System.out.println("Contents of the character array: ");
System.out.println(Arrays.toString(chArray));
}
}Output
Enter a String value: Tutorialspoint Contents of the String array: [T, u, t, o, r, i, a, l, s, p, o, i, n, t]
Using toCharArray() method
The toCharArray() method of the Strong class converts the current String into a character array and returns it. Therefore, to convert a Sting into a character array using this method −
Get the String to be converted.
Create an empty character array with the length of the String.
Convert the String to character array using the toCharArray() method and store it in the above created empty array.
Example
import java.util.Arrays;
import java.util.Scanner;
public class ToCharArrayExample {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a String value: ");
String str = sc.next();
//Creating an empty array with the length of the String
char chArray[] = str.toCharArray();
System.out.println("Contents of the character array: ");
System.out.println(Arrays.toString(chArray));
}
}Output
Enter a String value: Tutorialspoint Contents of the character array: [T, u, t, o, r, i, a, l, s, p, o, i, n, t]
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