Question

我正在制作这个非图形，我被困在制作程序检查解决方案（listener2）。我希望你能了解发生了什么。我刚开始编程所以要温柔。

主：

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Start {
static String[] stolpci = new String[10];
static String[] vrstice = new String[10];
static JButton[][] gumbi = new JButton[11][11];
static JButton gumbResitev1 = new JButton("Pregled resitev");
static JButton gumbResitev2 = new JButton("Nova igra");
public static void main(String[] args) {

    JFrame okno = new JFrame("Nonogram");
    okno.setSize(1000, 1000);
    okno.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    okno.add(panel);

    JPanel polje = new JPanel(new GridLayout(11, 11));
    panel.add(polje, BorderLayout.CENTER);

    JPanel nastavitve1 = new JPanel(new GridLayout(1, 1));
    panel.add(nastavitve1, BorderLayout.NORTH);

    nastavitve1.add(gumbResitev1);

    JPanel nastavitve2 = new JPanel(new GridLayout(1, 1));
    panel.add(nastavitve2, BorderLayout.SOUTH);

    nastavitve2.add(gumbResitev2);



    for (int i = 0; i < 11; i++) {
        for (int j = 0; j < 11; j++) {
            if (i < 1 || j < 1) {
                gumbi[i][j] = new JButton();
                gumbi[i][j].setBackground(Color.RED);
                polje.add(gumbi[i][j]);


            }

            else {

                gumbi[i][j] = new JButton();
                gumbi[i][j].setBackground(Color.WHITE);
                gumbi[i][j].addActionListener(new Listener(gumbi));
                polje.add(gumbi[i][j]);

            }

        }
    }

    // matrika in resitve

    Random rand = new Random();
    int[][] poljeM = new int[10][10];
    for (int i = 0; i < poljeM.length; i++) {
        for (int j = 0; j < poljeM[i].length; j++) {
            poljeM[i][j] = rand.nextInt(2);
        }
    }
    for (int i = 0; i < 10; i++) {
        for (int j = 0; j < 10; j++) {
            System.out.print(poljeM[i][j] + " ");
        }
        System.out.println(" ");
    }
    // stetje vrstic

    int crneV = 0;

    for (int g = 0; g < poljeM.length; g++) {
        crneV = 0;
        vrstice[g] = "";
        for (int i = 0; i < poljeM[0].length; i++) {
            if (poljeM[g][i] == 1) {
                crneV += 1;
            } else if (crneV != 0) {
                vrstice[g] += crneV + " ";
                crneV = 0;
            }

        }
        if (crneV != 0) {
            vrstice[g] += crneV + " ";
        }

    }

    // stetje stolpcev

    int crneS = 0;
    for (int i = 0; i < poljeM[0].length; i++) {
        stolpci[i] = "";
        crneS = 0;
        for (int j = 0; j < poljeM.length; j++) {
            if (poljeM[j][i] == 1) {
                crneS += 1;
            } else if (crneS != 0) {
                stolpci[i] += crneS + " ";
                crneS = 0;
            }
        }
        if (crneS != 0) {
            stolpci[i] += crneS + " ";
        }

    }

    for (int z = 1; z < 11; z++) {
        gumbi[0][z].setText(stolpci[z - 1]);
    }
    for (int i = 1; i < 11; i++) {
        gumbi[i][0].setText(vrstice[i - 1]);
    }


    gumbi[0][0].setText("Nonogram");

    // resize
            okno.setVisible(true);
}
}

listener1：

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;

public class Listener implements ActionListener {
JButton[][] gumbi = Start.gumbi;

public Listener(JButton[][] gumbi) {
    this.gumbi = gumbi;

}

public void actionPerformed(ActionEvent e) {

    JButton gumb = (JButton) e.getSource();

    if (gumb.getBackground() == Color.WHITE) {
        gumb.setBackground(Color.BLACK);
    } else if (gumb.getBackground() == Color.BLACK) {
        gumb.setBackground(Color.WHITE);
    }

}
}

LISTENER2：

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
public class Resitve extends Start implements ActionListener {
    JButton gumbResitev1 = Start.gumbResitev1;

    public Resitve (JButton gumbResitev1){
        this.gumbResitev1 = gumbResitev1;
    }


    public void actionPerformed(ActionEvent e) {
        JButton gumb = (JButton) e.getSource();

        String[] stetjeV = new String[10];
        int stevecC = 0;



        for (int i = 1; i < Start.gumbi.length; i++) {
            stevecC = 0;
            stetjeV[i] = "";
            for (int j = 1; j < Start.gumbi.length; j++) {
                if (gumb.getBackground() == Color.BLACK) {
                    stevecC += 1;
                } else if (gumb.getBackground() == Color.WHITE) {
                    stetjeV[i] += stevecC + " ";
                }
            }
            if (stevecC != 0) {
                stetjeV[i] += stevecC + " ";
            }

        }

        String[] stetjeS = new String[10];
        int stevecS = 0;

        for (int i = 0; i < Start.gumbi.length; i++) {
             stevecS = 0;
            stetjeS[i] = "";
            for (int j = 0; j < Start.gumbi.length; j++) {
                if (gumb.getBackground() == Color.BLACK) {
                    stevecS += 1;
                } else if(gumb.getBackground() == Color.WHITE){
                    stetjeS[j] += stevecS+ " ";
                }
            }
            if (stevecS !=0) {
                stetjeS[i] += stevecS+ " ";
            }
        }
        for (int i = 0; i < Start.gumbi.length; i++) {
            for (int j = 0; j < Start.gumbi.length; j++) {
                if (stetjeS[j]==stolpci[j] && stetjeV[i]==vrstice[i] ) {
                    System.out.println("je prav");
                }else{
                    System.out.println("ni prav");
                }
            }
        }

    }
}

Answer 1

开始时间：

 static JButton[][] gumbi = new JButton[11][11];

In Resitve

 String[] stetjeV = new String[10];

 for (int i = 1; i < Start.gumbi.length; i++) {
        stevecC = 0;
        stetjeV[i] = "";  // NPE! because 10 is less than 11

也许在这里：

 String[] stetjeS = new String[10];

并且在Start中还有包含10个元素的数组。

Java Nonogram（检查解决方案）无法正常工作

1 个答案: