---
title: "Discussion on \"Syntax and basic things to brush up on before starting/restarting leetcode\" | Hashnode"
description: "Discussion on \"Syntax and basic things to brush up on before starting/restarting leetcode\". Arrays\n        int[] arr = new int[10];\n        System.out.println(arr.length);\n\n        int[][] arr2 = new int[10][10];\n        System.out.println(arr2.length);\n        System.out.println(arr2[0].length);\n\n        Integer[] referenceArray = new Inte..."
url: "https://hashnode.com/posts/syntax-and-basic-things-to-brush-up-on-before-startingrestarting-leetcode/66fcc8dcd309a29ca37ecba3"
---

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# [Syntax and basic things to brush up on before starting/restarting leetcode](https://akadurga.hashnode.dev/syntax-and-basic-things-to-brush-up-on-before-startingrestarting-leetcode?utm_source=hashnode&utm_medium=feed)

Arrays int\[\] arr = new int\[10\]; System.out.println(arr.length); int\[\]\[\] arr2 = new int\[10\]\[10\]; System.out.println(arr2.length); System.out.println(arr2\[0\].length); Integer\[\] referenceArray = new Inte...

Oct 2, 2024 · 1 min read · akadurga.hashnode.dev  
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[Teja Illa](https://hashnode.com/@akaDurga)

@akaDurga

  
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