In this program, You will learn how to find the frequency of a number in an array in java.

```
List is: 1 44 3 4 5 44
Number of 44 frequency is: 2
```

```
import java.util.Scanner;
class Main {
public static void main(String args[]) {
Scanner s = new Scanner(System.in);
int a[] = new int[100];
int n, l, k = 0;
System.out.print("Enter size of an array:");
n = s.nextInt();
System.out.print("Enter array elements:");
for (int i = 0; i < n; i++) {
a[i] = s.nextInt();
}
System.out.print("Enter number for check frequency :");
l = s.nextInt();
for (int i = 0; i < n; i++) {
if (l == a[i]) {
k++;
}
}
System.out.println("Number of frequency:" + k);
}
}
```

```
Enter size of an array:5
Enter array elements:10 20 30 20 30
Enter number for check frequency :20
Number of frequency:2
```