Arrays

Java Core - Arrays and ArrayLists

Submitted by sneha on Fri, 05/17/2019 - 10:38

Notes on Arrays and ArrayLists. See the book on Collections for more advanced learning about List interface and other types of lists such as LinkedList.

Scaling a 2D array in Java

Submitted by heartin on Fri, 11/30/2012 - 21:11
Forums: 
Coding Problems (Data Structures)

 

You are given a 2-Dimensional array (matrix) and a scale factor. You need to write a method to scale the array according to the scale factor. The signature of the method should be 

public static int[][] scale1(int[][] arr, int scale)

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