feat: java solution for finding word's index that contains the given character

Author: KGK-7

find word containing char.java

@@ -0,0 +1,11 @@
+class Solution {
+    public List<Integer> findWordsContaining(String[] words, char x) {
+        List<Integer> char_index = new ArrayList<>(); 
+        for (int i = 0 ; i< words.length ; i++) {
+            if ( words[i].indexOf(x) != -1){
+                char_index.add(i);
+            }
+        }
+        return char_index;
+    }
+}