how to declare arrays in java code example

Example 1: 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 2: creating array java

int[] intArray = new int[]{ 1,2,3,4,5,6,7,8,9,10 }

Example 3: java array declaration

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

Example 4: java int array

int[] theNumbers = new int[5];

arr[0] = 4;
arr[1] = 8;
arr[2] = 15;
arr[3] = 16;
arr[4] = 23;
arr[5] = 42;