Which of the below is valid way to instantiate an array in java? code example

Example 1: java array declaration

int[] array = new int[/*size*/];
// Works for double, char, etc.

Example 2: java how to initialize an array

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

Example 3: how to initialize array in java

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