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Data structures in Java are an essential aspect of Computer Science. There are different types of data structures that help us store the data in different ways in the memory that in turn allows us to effectively utilise the memory. So, in this article, we are going to discuss 3 very important data structures viz, Arrays, Linked Lists, and Stacks in Java.<\/p>\n
Data Structures in Java are an important part of Programming. Get a better understanding of problems by watching these video tutorials<\/a> created by expert mentors at Prepbytes<\/a>.<\/p>\n Let\u2019s Discuss various Data Structures in Java.<\/strong><\/p>\n Array: An array is a linear, contiguous collection of the same data type. Let us understand this with the help of the diagram shown below.<\/p>\n So, as you can see in the image above, we have an array of lengths 5. All the elements in this array are integers (same data type).<\/p>\n Now, what do we mean by contiguous memory? So, let us say that the address of the first block of the array is 4k. This is called the base address<\/strong> of the array.<\/p>\n Contiguous memory means addresses will be continuous as shown below.<\/p>\n Now, let us understand the memory mapping concepts of an array.<\/p>\n Following is the code to declare an array in Java.<\/p>\n\t\t\t\t\t\tArrays in Java<\/h2>\n
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<\/p>\nArray Declaration (With Memory Mapping)<\/h3>\n