Android Calculator code sample sharing _android

Copy Code code as follows:

<?xml version= "1.0" encoding= "Utf-8"?>
<edittext
Android:id= "@+id/edittext1"
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
Android:ems= "Ten" >

<requestfocus/>
</EditText>

<button
Android:id= "@+id/button1"
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:text= "1"/>

<button
Android:id= "@+id/button2"
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:text= "2"/>

<button
Android:id= "@+id/button3"
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:text= "+"/>

<button
Android:id= "@+id/button4"
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:text= "="/>

Copy Code code as follows:

Package com.action;

Import Android. R.integer;
Import android.app.Activity;
Import Android.os.Bundle;
Import Android.view.View;
Import Android.view.View.OnClickListener;
Import Android.widget.Button;
Import Android.widget.EditText;

public class Jspactivity extends activity{
Private Button bt1;
Private Button BT2;
Private Button Btadd;
Private Button BTEQL;

Private EditText et;

private int A;
private int B;

Private String stra= "";
Private String FH;
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (r.layout.jsp);
bt1= (Button) Findviewbyid (R.id.button1);
Bt2= (Button) Findviewbyid (R.id.button2);
Btadd= (Button) Findviewbyid (R.id.button3);
Bteql= (Button) Findviewbyid (R.ID.BUTTON4);

    et= (edittext) Findviewbyid (R.ID.EDITTEXT1);
    Bt1.setonclicklistener (new sum ());
    Bt2.setonclicklistener (new sum ());
    Btadd.setonclicklistener (New Onclicklistener () {

@Override
public void OnClick (View v) {
TODO auto-generated Method Stub
A=integer.parseint (Et.gettext (). toString ());
Et.settext ("");
Stra= "";
Fh=btadd.gettext (). toString ();
}
});
Bteql.setonclicklistener (New Onclicklistener () {

@Override
public void OnClick (View v) {
TODO auto-generated Method Stub
B=integer.parseint (Et.gettext (). toString ());
Et.settext ("");
Stra= "";
if (fh.equals ("+"))
{
int c=a+b;
Et.settext ("" +c);
}
}
});
}
public class sum implements onclicklistener{

    @Override
    public void OnClick (View v) {
        //TODO auto-generated method stub
        switch (V.getid () {
        case r.id.button1:
             Stra+=bt1.gettext ();
            Et.settext (stra);
            break;
        case R.id.button2:
             Stra+=bt2.gettext ();
            Et.settext (stra);
            break;

Default
Break
}
}
}
}