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这是我的代码 (im very beginner) 我试图在EditText上打印变量答案 但我得到的错误是“无法解析符号答案”我不知道如何解决它的帮助,请:我如何打印一个变量的值到Textview
package com.example.user.test_calculator;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public static double main(String[]args){
int x , y , answer;
x = 2;
y = 3;
answer = y + x;
return 0;
}
public void buttonOnClick(View v){
EditText txtoutput = (EditText) findViewById(R.id.editText);
txtoutput.setText(String.valueOf(answer));
}
}