java types of arrays code example

Example 1: 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 2: java array declaration

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

Example 3: arrays in java

int[] intArray = new int[20];
String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};

Example 4: arrays in java

int[] arr;			// Declaration dataType can int, float etc.
arr = new int[N];	// Allocation N = 0 to 2,147,483,647.

Example 5: arrays in java

int int_array[] = {10, 22, 475, 90, 54, 63}; // Brace-enclosed initializer list.

float float_array[]; // Array declaration/initialization with "new" keyword.
float_array = new float[SIZE_OF_ARRAY]; // Assume "SIZE_OF_ARRAY" is an integer.