044 - Method Header Challenge 1 (Optional)

Write a method header on line two with the following specs:

 

Returns: a String

Name: mixString

Parameters:

• a String called s1

• a String called s2

 

Then, starting on line 4, write code that will return the strings combined, one letter at a time, starting with s1. See example below for an example. You can assume that s1 and s2 are equal lengths:

s1 ==> "12345" s2 ==> "abcde" mixString(s1,s2) ==> "1a2b3c4d5e"

---

Solution

 

import java.util.*;
class Main {
    public static String mixString(String s1, String s2)
    {
        String temp ="";
        for(int i=0;i<s1.length();i++) {
            temp+=s1.substring(i,i+1)+s2.substring(i,i+1);
        }
        return temp;
    }
    
    //test case below (dont change):
    public static void main(String[] args){
        System.out.println(mixString("12345","abcde")); //should be 1a2b3c4d5e
        System.out.println(mixString("howdy","hello")); //should be hhoewldlyo
    }
}