我希望有兩個編輯文本之間的方程並把吐司 輸出我試圖用這樣的公式: String data1 = one.getText().toString(); String data2 = two.getText().toString(); String RES = data1 + data2;
但這種方式輸出的結果作爲字符串而不是數字 查找代碼如下:主活動代碼:MainActivity.java我想讓之間有兩個編輯文本
package com.mkadaim.android;
import android.R.integer;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.text.Editable;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText one = (EditText)findViewById(R.id.First);
final EditText two = (EditText)findViewById(R.id.Second);
Button res = (Button)findViewById(R.id.Result);
res.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int x = one.getText();
int y = two.getText();
int z = x + y;
Toast.makeText(getBaseContext(), z, 4000).show();
}
});
}
}
字符串RES = 「」 +(Double.ParseDouble(數據1)+ Double.ParseDouble(DATA2 ));這樣做 – Hasnain 2014-09-27 12:27:09