[Android Studio] 홀 짝 게임 만들기

MainActivity5.java

package kr.co.aiai.app;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity5 extends AppCompatActivity {
    EditText mine;
    EditText com;
    EditText result;
    Button btn;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main5);

        mine = findViewById(R.id.et_mine);
        com = findViewById(R.id.et_com);
        result = findViewById(R.id.et_result);
        btn = findViewById(R.id.btn);

        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                playGame();
            }
        });

    }

    public void playGame(){
        String m = mine.getText().toString();
        String c = "";
        String res = "";
        double rnd = Math.random();
        if(rnd>0.5){
            c = "홀";
        } else{
            c = "짝";
        }

        if(c.equals(m)){
            res = "승리";
        }else{
            res = "패배";
        }
        com.setText(c);
        result.setText(res);
    }


}

 

activity_main5.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        tools:ignore="MissingConstraints">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView

                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="나 : "
                android:textSize="30dp" />

            <EditText
                android:id="@+id/et_mine"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:ems="10"
                android:inputType="text"
                android:textSize="20dp" />


        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView

                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="컴 : "
                android:textSize="30dp" />

            <EditText
                android:id="@+id/et_com"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:ems="10"
                android:inputType="text"
                android:textSize="20dp" />


        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView

                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="결과 : "
                android:textSize="30dp" />

            <EditText
                android:id="@+id/et_result"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:ems="10"
                android:inputType="number"
                android:textSize="20dp" />


        </LinearLayout>

        <Button
            android:id="@+id/btn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="게임하기" />

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>