안드로이드 스튜디오 홀짝 맞추기

 

package kr.co.aiai.app;

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

import androidx.appcompat.app.AppCompatActivity;

import java.util.Random;

public class MainActivity4 extends AppCompatActivity {

    TextView etMine;
    EditText etcom;
    EditText etresult;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main4);


        etMine = findViewById(R.id.etMine);
        etcom = findViewById(R.id.etcom);
        etresult = findViewById(R.id.etresult);

        Button btn = findViewById(R.id.btn);

        btn.setOnClickListener(view -> {
            click();
        });


    }


    public void click(){
        String mine = etMine.getText().toString();
        double a = (double)Math.random();

        String com="";
        if(a>0.5){
            com="짝";
        }else{
            com="홀";
        }

        etcom.setText(com.toString());

        if(mine.equals(com)){   //내가 이김
            etresult.setText("이김");
        }else{
            etresult.setText("짐");
        }
    }
}

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