Create MergeStringsAlternatively.java

Author: harshithasudhakar

Strings/MergeStringsAlternatively.java

@@ -0,0 +1,33 @@
+class MergeStringsAlternatively {
+    public String mergeAlternately(String word1, String word2) {
+        int s1 = word1.length();
+        int s2 = word2.length();
+
+        StringBuilder sb = new StringBuilder();
+
+        if(s1<s2){
+            for(int i = 0; i<s1; i++){
+                sb.append(word1.charAt(i));
+                sb.append(word2.charAt(i));
+            }
+
+            sb.append(word2.substring(s1, s2));
+        }
+        else if(s2<s1){
+            for(int i = 0; i<s2; i++){
+                sb.append(word1.charAt(i));
+                sb.append(word2.charAt(i));
+            }
+
+            sb.append(word1.substring(s2, s1));
+        }
+        else{
+            for(int i = 0; i<s1; i++){
+                sb.append(word1.charAt(i));
+                sb.append(word2.charAt(i));
+            }
+        }   
+
+        return sb.toString();     
+    }
+}