getting part of a string java code example

Example 1: extract one string java

int pos = 0; //Arbitrary position, can be any number
"String".substring(pos, pos+1);

Example 2: how to substring in java

class scratch{
    public static void main(String[] args) {
        String hey = "Hello World";
        System.out.println( hey.substring(0, 5) );
        // prints Hello;
    }
}