Check out example codes for "how to initialize an array in java". It will help you in understanding the concepts better.

Code Example 1

int[] arr = new int[10];	//Can hold 10 elements

Code Example 2

int[] arr = new int[5];	 // integer array of size 5 you can also change data type

Code Example 3

int[] data = {10,20,30,40,50,60,71,80,90,91};
// or
int[] data;
data = new int[] {10,20,30,40,50,60,71,80,90,91};
// or
int[] data = new int[10];
data = {10,20,30,40,50,60,71,80,90,91};

Code Example 4

int[] arr = new int[n];

Code Example 5

int[] age = new int[5];

Code Example 6

(file name) file name(s) = new (File name)[/*amount*/]
  
  void setup() {
  	for (int i = 0; i < (file name(s)).length; i++) {
    	 
    }
  }

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