吐司消息不会弹出

Question

package org.techtown.challenge09;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.Arrays;

public class MainActivity extends AppCompatActivity {
    ListView listView;
    SingerAdapter adapter;
    EditText Name;
    EditText Start;
    EditText End;

    Button button;
    int[] result = new int[24];
    int[] Time;
    int click=0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Name = findViewById(R.id.editText1);
        Start = findViewById(R.id.editText2);
        End = findViewById(R.id.editText3);

        adapter = new SingerAdapter();

        button = findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String name = Name.getText().toString();
                String start = Start.getText().toString() + ":00";
                String end = End.getText().toString() + ":00";

                adapter.addItem(new SingerItem(name, start, end, R.drawable.human));

                int First = Integer.parseInt(Start.getText().toString());
                int Last = Integer.parseInt(End.getText().toString());
                for(int i=First; i<Last; i++) {
                    result[i] = 1;
                }


                click=1;
            }
        });

        listView = findViewById(R.id.listView);
        listView.setAdapter(adapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                SingerItem item = (SingerItem) adapter.getItem(position);
                Toast.makeText(getApplicationContext(), "선택 : " + item.getName(),
                Toast.LENGTH_LONG).show();
            }
        });


        if(click == 1) {
            int num=0, num2=0;
            for(int i=0; i<=23; i++) {
                if(result[i] == 1) {
                    num++;
                }
            }
            Time = new int[num-1];
            for(int i=0; i<=23; i++) {
                if(result[i] == 1) {
                    Time[num2]=i;
                    num2++;
                }
            }

            button = findViewById(R.id.button2);
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Toast.makeText(getApplicationContext(), Arrays.toString(Time), Toast.LENGTH_LONG).show();
                }
            });
        }


        button = findViewById(R.id.exit);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });

    }
    public class SingerAdapter extends BaseAdapter {
        ArrayList<SingerItem> items = new ArrayList<SingerItem>();
        @Override
        public int getCount() {
            return items.size();
        }

        public void addItem(SingerItem item) {
            items.add(item);
        }

        @Override
        public Object getItem(int position) {
            return items.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup viewGroup) {
            SingerItemView view = new SingerItemView(getApplicationContext());
            SingerItem item = items.get(position);
            view.setName(item.getName());
            view.setStart(item.getStart());
            view.setEnd(item.getEnd());
            view.setImage(item.getResId());

            return view;
        }
    }
}

当我单击“ button2”（单击“ button”之后）时，不会弹出Toast消息。有什么问题吗？

我想问题是在button.setOnClickListener（）中'click'变量的更改不适用于整个更改。 如何才能更改button.setOnClickListener（）中'click'变量中的更改应用于全部？