以下是我的程序人工漏洞。我如何能够从用户设置的main访问coorordinates，并将它们分配给MyClass类中设置的数组，提前感谢：）
//imports
import java.util.Scanner;
import java.util.Random;
public class main {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
ABug[] BugObj = new ABug[4]; //Creating object BugObj of class ABug
int loop = 4;
int i = 0;
int cycles;
MyClass worldnew = new MyClass();
System.out.println("Please enter the number of cycles you wish to run:");
cycles = reader.nextInt(); //getting the amount of cycles to be run
System.out.print("____Current World____\n\n");
worldnew.printWorld(); //calling method to print out world
System.out.println("____Key____\n_F_ - Food\n_O_ - Object\n_ _ - Space\nSymbol - Bug");
do{
BugObj[i] = new ABug(); //creating instance
System.out.print("Please enter the symbol which you wish to represent the bug:");
BugObj[i].symbol = reader.next();
System.out.print("Please enter the name of the bug:");
BugObj[i].name = reader.next();
System.out.println("Please enter the species of the bug:");
BugObj[i].species = reader.next();
System.out.println("Please enter the horizontal position of the bug:");
BugObj[i].horpos = reader.nextInt();
System.out.println("Please enter the vertical postion of the bug:");
BugObj[i].vertpos = reader.nextInt();
System.out.println("_______________ Bug " +(+i+1) + " _______________\n" );
System.out.println("Symbol: " + BugObj[i].symbol); //Printing bug information out
System.out.println("Name: " + BugObj[i].name);
System.out.println("Species: " + BugObj[i].species);
System.out.println("Horizontal Position: " + BugObj[i].horpos);
System.out.println("Vertical Postion: " + BugObj[i].vertpos + "\n\n");
move(BugObj[i]);
i++;
System.out.println("Would you like to enter another bug? \n 0-No, 1-Yes\n");
loop = reader.nextInt();
}while(loop == 1);
}
public static void move(ABug bug){
Scanner reader = new Scanner(System.in);
System.out.println("Would you like this bug to move?\n 0-No, 1-Yes\n");
if (reader.nextInt() == 0)
{
System.exit(0);
}
//get corordinate of bug
//set map[coor] = symbol
//print out map
int r = (int) (Math.random() * (2- -2)) + -2;
int originalHorpos = bug.horpos;
int originalVertpos = bug.vertpos;
bug.horpos = originalHorpos + r;
bug.vertpos = originalVertpos + r;
System.out.println("New Horizontal Position: " +bug.horpos );
System.out.println("New Vertical Postion: " +bug.vertpos);
}
}
enum Item {
OBJECT ('O'),FOOD ('F'), SPACE (' ');
private final char symbol;
Item(char symbol) {
this.symbol = symbol;
}
char getSymbol() { return symbol; }
}
class MyClass {
Item[][] map = new Item[15][25];
public void printWorld() {
int v, h; //v - vert, h - hor
for (v=1; v<=15; ++v)
{
for (h=1; h<=25; ++h)
{
final Item[] items = {Item.OBJECT, Item.FOOD, Item.SPACE, Item.SPACE, Item.SPACE, Item.SPACE, Item.SPACE, Item.SPACE};
Random random = new Random();
int selection = random.nextInt(items.length);
map[v-1][h-1] = items[selection];
System.out.print(map[v-1][h-1].getSymbol() + "_");
}
System.out.printf("\n");
}
}
}
class ABug { //ABug class
int horpos, vertpos, energy, id;
String species, name, symbol;
}
修改
package buglife;
//imports
import java.util.Scanner;
import java.util.Random;
public class main {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
ABug[] BugObj = new ABug[4]; //Creating object BugObj of class ABug
int loop = 4;
int i = 0;
int cycles;
MyClass worldnew = new MyClass();
System.out.println("Please enter the number of cycles you wish to run:");
cycles = reader.nextInt(); //getting the amount of cycles to be run
System.out.print("____Current World____\n\n");
worldnew.printWorld(); //calling method to print out world
System.out.println("____Key____\n_F_ - Food\n_O_ - Object\n_ _ - Space\nSymbol - Bug");
do{
BugObj[i] = new ABug(); //creating instance
System.out.print("Please enter the symbol which you wish to represent the bug:");
BugObj[i].symbol = reader.next();
System.out.print("Please enter the name of the bug:");
BugObj[i].name = reader.next();
System.out.println("Please enter the species of the bug:");
BugObj[i].species = reader.next();
System.out.println("Please enter the horizontal position of the bug:");
BugObj[i].horpos = reader.nextInt();
System.out.println("Please enter the vertical postion of the bug:");
BugObj[i].vertpos = reader.nextInt();
System.out.println("_______________ Bug " +(+i+1) + " _______________\n" );
System.out.println("Symbol: " + BugObj[i].symbol); //Printing bug information out
System.out.println("Name: " + BugObj[i].name);
System.out.println("Species: " + BugObj[i].species);
System.out.println("Horizontal Position: " + BugObj[i].horpos);
System.out.println("Vertical Postion: " + BugObj[i].vertpos + "\n\n");
move(BugObj[i], worldnew);
i++;
System.out.println("Would you like to enter another bug? \n 0-No, 1-Yes\n");
loop = reader.nextInt();
}while(loop == 1);
}
public static void move(ABug bug, MyClass wolrdnew){
Scanner reader = new Scanner(System.in);
System.out.println("Would you like this bug to move?\n 0-No, 1-Yes\n");
if (reader.nextInt() == 0)
{
System.exit(0);
}
int x = bug.horpos;
int y = bug.vertpos;
worldnew.setMap(x,y,bug.symbol());
worldnew.printWorld();
//get corordinate of bug
//set map[coor] = symbol
//print out map
int r = (int) (Math.random() * (2- -2)) + -2;
int originalHorpos = bug.horpos;
int originalVertpos = bug.vertpos;
bug.horpos = originalHorpos + r;
bug.vertpos = originalVertpos + r;
//bug.horpos += r;
//bug.vertpos += r;
System.out.println("New Horizontal Position: " +bug.horpos );
System.out.println("New Vertical Postion: " +bug.vertpos);
}
}
//public void smellFood (Direction d){
// int MaxSensingDist = 2;
//}
//public void getRandomDirectionToMove (Direction d){
//
//}
//public void getDirectionOfFood (){
//}
enum Item {
OBJECT ('O'),FOOD ('F'), SPACE (' ');
private final char symbol;
Item(char symbol) {
this.symbol = symbol;
}
char getSymbol() { return symbol; }
}
class MyClass {
public void setMap(int x, int y, Item symbol)
{
this.map[x][y] = symbol;
}
Item[][] map = new Item[15][25];
public void printWorld() {
int v, h; //v - vert, h - hor
for (v=1; v<=15; ++v)
{
for (h=1; h<=25; ++h)
{
//map[0][0] = Item.TREE;
//map[0][1] = Item.FOOD;
//System.out.print(map[0][0].getSymbol());
//System.out.print(map[0][1].getSymbol());
//final String[] items = {"F", "O", ". ", ". ", ". ", ". ", ". ", ". "};
//Random random = new Random();
//int index = random.nextInt(items.length);
//System.out.printf(items[index] + "\t");
final Item[] items = {Item.OBJECT, Item.FOOD, Item.SPACE, Item.SPACE, Item.SPACE, Item.SPACE, Item.SPACE, Item.SPACE};
Random random = new Random();
int selection = random.nextInt(items.length);
map[v-1][h-1] = items[selection];
System.out.print(map[v-1][h-1].getSymbol() + "_");
}
System.out.printf("\n");
}
}
}
class ABug { //ABug class
int horpos, vertpos, energy, id;
String species, name, symbol;
}
答案 0 :(得分：1)
怎么样只是
int x = bug.get(horpos);
int y = bug.get(vertpos);
worldnew.setMap(x,y,bug.getSymbol());
worldnew.printWorld();
并在MyClass中添加一个新方法，如
void setMap(int x, int y, String symbol)
{
this.map[x][y] = symbol;
}
您可能需要进行一些更改以适合您的代码，但基本想法仍然相同
修改
您还需要更改
move(BugObj[i]);
到
move(BugObj[i],worldnew);
并将移动功能的定义更改为
public static void move(ABug bug, MyClass worldnew)