2024/09/26 App

버튼 넣어서 두 수 합 구하기

package com.example.addapp;

    import androidx.appcompat.app.AppCompatActivity;

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

    public class MainActivity extends AppCompatActivity {
        TextView txt1, txt2, result;
        Button btnAdd;
        EditText editT1, editT2;

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

            txt1=(TextView) findViewById(R.id.textView1);
            txt2=(TextView) findViewById(R.id.textView2);
            result=(TextView) findViewById(R.id.textView6);
            btnAdd=(Button) findViewById(R.id.button);
            editT1=(EditText) findViewById(R.id.editText1);
            editT2=(EditText) findViewById((R.id.editText2));
        }

        public void onBtnAdd(View view) {
            String val1 = editT1.getText().toString();
            String val2 = editT2.getText().toString();

            int a = Integer.parseInt(val1);
            int b = Integer.parseInt(val2);

            result.setText(String.valueOf(a+b));
        }
    }

릴리스 AI

이미지 변경

package com.example.image;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    TextView txtimg;
    ImageView img;
    Button btnimg;
    int imgNum[]={R.drawable.cat1,R.drawable.cat2,R.drawable.cat3,R.drawable.cat4,R.drawable.cat5,R.drawable.cat6};
    int index = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        txtimg=(TextView) findViewById(R.id.txtImg);
        img=(ImageView) findViewById(R.id.imageView);
        btnimg=(Button) findViewById(R.id.btnimg);
    }

    public void onchangeImg(View view) {
        index++;
        if (index >= imgNum.length) {
           index = 0;
        }
        img.setImageResource(imgNum[index]);
        txtimg.setText(Integer.toString(index+1)+"번 고양이");
    }
}