In declaring an array, the values can be assigned all at once by using a curly bracket notation.
Once the array elements are initialized, they can be accessed by referencing the elements’ indexes inside the square brackets.
Notice that index starts with 0.
package javaapplication10; public class JavaApplication10 { public static void main(String[] args) { int[] a = {1,2,3}; System.out.print(a[0] + a[1] + a[2] + "\n"); } }