How to Iterate a String in Java

package pretechtest;
public class StringTest {
	public static void main(String[] args) {
		String str = "Hello pretech";
		for (int i = 0; i <= str.length()-1; i++) {
			System.out.println(str.charAt(i));
		}
	}
}

Output

H
e
l
l
o
p
r
e
t
e
c
h