BAEL-1761 Jagged Arrays In Java

core-java/src/main/java/com/baeldung/array/JaggedArray.java

@@ -0,0 +1,49 @@
+package com.baeldung.array;
+
+import java.util.Arrays;
+import java.util.Scanner;
+
+public class JaggedArray {
+
+    int[][] shortHandFormInitialization() {
+        int[][] jaggedArr = { { 1, 2 }, { 3, 4, 5 }, { 6, 7, 8, 9 } };
+        return jaggedArr;
+    }
+
+    int[][] declarationAndThenInitialization() {
+        int[][] jaggedArr = new int[3][];
+        jaggedArr[0] = new int[] { 1, 2 };
+        jaggedArr[1] = new int[] { 3, 4, 5 };
+        jaggedArr[2] = new int[] { 6, 7, 8, 9 };
+        return jaggedArr;
+    }
+
+    int[][] declarationAndThenInitializationUsingUserInputs() {
+        int[][] jaggedArr = new int[3][];
+        jaggedArr[0] = new int[2];
+        jaggedArr[1] = new int[3];
+        jaggedArr[2] = new int[4];
+        initializeElements(jaggedArr);
+        return jaggedArr;
+    }
+
+    void initializeElements(int[][] jaggedArr) {
+        Scanner sc = new Scanner(System.in);
+        for (int outer = 0; outer < jaggedArr.length; outer++) {
+            for (int inner = 0; inner < jaggedArr[outer].length; inner++) {
+                jaggedArr[outer][inner] = sc.nextInt();
+            }
+        }
+    }
+
+    void printElements(int[][] jaggedArr) {
+        for (int index = 0; index < jaggedArr.length; index++) {
+            System.out.println(Arrays.toString(jaggedArr[index]));
+        }
+    }
+
+    int[] getElementAtGivenIndex(int[][] jaggedArr, int index) {
+        return jaggedArr[index];
+    }
+
+}