java instantiate an array code example

Example 1: how to initialize an array in java

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};

Example 2: how to declare array java

int intArray[];    //declaring array
intArray = new int[20];  // allocating memory to array
//OR
int[] intArray = new int[20]; // combining both statements in one

Example 3: how to create an array in java

int[] array1 = new int[5]; //int array length 5
String[] array2 = new String[5] //String array length 5
double[] array3 = new double[5] // Double array length 5

Example 4: array in java

int intArray[];    //declaring array
intArray = new int[10];  // allocating memory to array
intArray[0] = 10;	// Adding elements to the array
System.out.println(intArray[0]); // Accessing elements of array