Answered: placeholder for the Tile objects. But…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

The block is practically a square-size placeholder for the Tile objects. But not all the spots are necessarily occupied. When the block is generated, we randomly pick the spots that will be filled in with tiles. All the tiles of a block must have the same color.

write the code for these functions below

private DynamicArray<DynamicArray<Tile>> block; // the internal storage of the block data

public Block(int y, int x, int size) // this contructor creates a 2D placeholder of null value; //these values will be populated later with calls to setTile()

public Block(int y, int x, int size, byte color) // overloaded constuctor that creates a 2D matrix with actual tile objects; //no need to call setTile afterwards

public class DynamicArray<T>
{
}
private T[] data;
private int size;
@SuppressWarnings ("unchecked")
public DynamicArray(int size) {
}
public void set(int index, T obj){
if (index < 0 || index >= data.length) {
}
data = (T [])new Object[size];
this.size = 0;
}
}
}
throw new IndexOutOfBounds Exception (s: "Index out of bounds");
public T get(int index) {
data[index] = obj;
size++;
if (index < 0 || index >= data.length) {
throw new IndexOutOfBoundsException (s: "Index out of bounds");
}
return data[index];
public int size(){
return size;

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