contract Array {
uint[4] public fixedArray = [1,2,3,4];
uint[] public dynamicArray=[1];
uint[][2] public twoDArray=[[1,2][1,2,3]] //2D array with two element.
//add in array.Array is 0 based function addNumber(uint _number) public { dynamicArray.push(_number) }
//find length of array function arrayLength() public view returns(uint){ return dynamicArray.length; }
}

// Create array
address[] addresses
uint256[] myArray
// Add to array
function add() internal { myArray.push(123);
}
// Remove from array
function removeUnordered() internal { myArray[index] = myArray[myArray.length - 1]; myArray.pop();
}
function removeOrdered() internal { // WARN: This unbounded for loop is an anti-pattern for(uint256 i = index; i < myArray.length-1; i++){ myArray[i] = myArray[i+1]; } myArray.pop();
}

uint32[3] fixedLengthArray = new uint[](3)
// initialise empty fixed length array
uint32[] dynamicLengthArray;
// initialised empty fixed length array

pragma solidity ^0.6.0;
contract samplyArray { uint[] public myArray; //this is a dynamic array of type uint uint[] public myArray2 = [1, 2, 3]; //this is a dynamic array with 1, 2 and 3 as default values uint[10] public myFixedSizeArray; //this is a fixed size array of type uint }

uint size = 3;
uint balance[] = new uint[](size);