Main.java Source code

Introduction

Here is the source code for Main.java

Source

public class Main {
    public static void main(String args[]) throws Exception {
        String str = "this is a test";
        System.out.println(replaceCharAt(str, 0, 'd'));
    }

    public static String replaceCharAt(String s, int pos, char c) {
        StringBuffer buf = new StringBuffer(s);
        buf.setCharAt(pos, c);
        return buf.toString();
    }
}
//dhis is a test