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Java Quellcode

public class BaeumeFaellen {
 
	int x = 0, y = 0, hoehe, breite;
	private boolean [][]array = new boolean [hoehe][breite];
 
	public BaeumeFaellen(int x, int y, int hoehe, int breite) {
		this.x = x;
		this.y = y;
		this.hoehe = hoehe;
		this.breite = breite;
	}
 
	int getX() {
		return x;
	}
 
	int getY() {
		return y;
	}
 
	boolean [][]pflanzen() {
		for (int i = 0; i <= hoehe; i++) {
			for (int j = 0; j <= breite; j++)
				array[i][j] = true;
		}
		return array;
	}
 
	boolean innerhalb() {
		if (getX() <= hoehe && getY() <= breite)
			return true;
		else
			return false;
	}
 
	boolean [][]faellen() {
		if (innerhalb()) 
			pflanzen()[getX()][getY()] = false;
 
		return pflanzen();
	}
 
	public String toString() {
		String out = "";
 
			for (int i = 0; i <= hoehe; i++){
				for (int j = 0; j <= breite; j++){
					if (array[i][j] == true)
						out = out + "Baum ";
					else
						out = out + "Kein Baum ";
 
					if (j == breite)
						out = out + "\n";
				}
			}
 
		return out;
	}
 
}

Java Quellcode

import javax.swing.*;
public class BaeumeTest {
 
	public static void main (String[] args) {
		int x,y,hoehe,breite;
 
		hoehe = Integer.parseInt(JOptionPane.showInputDialog("Höhe des Feldes: "));
		breite = Integer.parseInt(JOptionPane.showInputDialog("breite des Feldes: "));
		x = Integer.parseInt(JOptionPane.showInputDialog("x-te Position: "));
		y = Integer.parseInt(JOptionPane.showInputDialog("y-te Position: "));
 
		BaeumeFaellen baum = new BaeumeFaellen(x, y, hoehe, breite);
 
		JOptionPane.showMessageDialog(null, baum.toString());
	}
}