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Generate a random array of integers in Java
In order to generate random array of integers in Java, we use the nextInt() method of the java.util.Random class. This returns the next random integer value from this random number generator sequence.
Declaration − The java.util.Random.nextInt() method is declared as follows −
public int nextInt()
Let us see a program to generate a random array of integers in Java −
Example
import java.util.Random; public class Example { public static void main(String[] args) { Random rd = new Random(); // creating Random object int[] arr = new int[5]; for (int i = 0; i < arr.length; i++) { arr[i] = rd.nextInt(); // storing random integers in an array System.out.println(arr[i]); // printing each array element } } }
Output
-1848681552 39846826 858647196 1805220077 -360491047
Note − The output might vary on Online Compilers.
Here we use the nextInt() method in a loop to get a random integer for each element.
for (int i = 0; i < arr.length; i++) arr[i] = rd.nextInt();
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