계산기 어플 사칙연산 안됨

Question

제목 그대로인데요 코드는 댓글에 올려놓겠습니다

Comments

package com.cookandroid.lab7;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class LandActivity extends AppCompatActivity {
    CalculateHelper calculateHelper;

    boolean isDot, isBracket, isPreview1;

    int size;

    TextView thirdTxtView;

    String result, number;

    Button clearBtn, plmaBtn, percentBtn, divBtn, mulBtn, subBtn, addBtn, dotBtn, equalBtn, guideBtn,
            ijayulBtn, ijaBtn, bockyulBtn, bockBtn, fourdaBtn, kuckBtn, gunBtn, goBtn, jangBtn, jegobBtn, bracketBtn,
            changeBtn, btn0, btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9;

    double d1, result1;

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

        calculateHelper = new CalculateHelper();

        size = 0;
        int number = 25;
        int t = String.valueOf(Math.sqrt(number)).length();
        Log.d("test", "" + t + " ? " + String.valueOf(Math.sqrt(number)));

        isPreview1 = false;
        isBracket = false;
        isDot = false;

        int[][] test = new int[5][7];
        isPreview1 = false;
        isBracket = false;
        isDot = false;

        setButtonLand();
        setTextView();

    }

Answer 1

Github에 존재하는 프로젝트들을 참조하세요.

https://github.com/topics/android-calculator