Create zip-two-lists.md

Author: davidanukam

snippets/java/array-manipulation/zip-two-lists.md

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+---
+title: Zip Two Lists
+description: Zips two lists into a list of paired elements, combining corresponding elements from both lists.
+author: davidanukam
+tags: lists,java,zip,stream-api,collections
+---
+
+```java
+import java.util.*; // Importing utility classes for List and Arrays
+import java.util.stream.IntStream; // Importing IntStream for range and mapping
+import java.util.stream.Collectors; // Importing Collectors for collecting stream results
+
+public class Main {
+    // Generic method to zip two lists into a list of paired elements
+    public static <A, B> List<List<Object>> zip(List<A> list1, List<B> list2) {
+        // Create pairs by iterating through the indices of both lists
+        return IntStream.range(0, Math.min(list1.size(), list2.size())) // Limit the range to the smaller list
+                .mapToObj(i -> Arrays.asList(list1.get(i), list2.get(i))) // Pair elements from both lists at index i
+                .collect(Collectors.toList()); // Collect the pairs into a List
+    }
+
+    public static void main(String[] args) {
+        // Usage:
+        List<String> arr1 = Arrays.asList("a", "b", "c");
+        List<Integer> arr2 = Arrays.asList(1, 2, 3);
+        List<List<Object>> zipped = zip(arr1, arr2);
+
+        System.out.println(zipped); // Output: [[a, 1], [b, 2], [c, 3]]
+    }
+}
+```