android简单计算器代码

package ;

import ty;

import ;

import ;

import kListener;

import ;

import xt;

public class CalculatordemoActivity extends Activity implements OnClickListener {

private Button but0 = null;

private Button but1 = null;

private Button but2 = null;

private Button but3 = null;

private Button but4 = null;

private Button but5 = null;

private Button but6 = null;

private Button but7 = null;

private Button but8 = null;

private Button but9 = null;

private Button dim = null;

private Button add = null;

private Button sub = null;

private Button mult = null;

private Button div = null;

private Button equ = null;

private EditText etext = null;

private double value = 0;

/** Called when the activity is first created. */

private String str1 = null;

private String tem = "";

private String sign = "a";

@Override

public void onCreate(Bundle savedInstanceState) {

te(savedInstanceState);

tentView();

add = (Button) findViewById();

sub = (Button) findViewById();

mult = (Button) findViewById();

div = (Button) findViewById();

equ = (Button) findViewById(te);

but1 = (Button) findViewById(1);

but3 = (Button) findViewById(3);

but2 = (Button) findViewById(2);

but4 = (Button) findViewById(4);

but5 = (Button) findViewById(5);

but6 = (Button) findViewById(6);

but7 = (Button) findViewById(7);

but8 = (Button) findViewById(8);

but9 = (Button) findViewById(9);

but0 = (Button) findViewById(0);

dim = (Button) findViewById();

etext = (EditText) findViewById();

lickListener(new AListener());

lickListener(new AListener());

lickListener(new AListener());

lickListener(new AListener());

lickListener(new Listener());

}

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

lickListener(this);

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

if ((but1)) {

}

if ((but2)) {

}

if ((but3)) {

tem = tem + "3";

t(tem);

tem = tem + "2";

t(tem);

tem = tem + "1";

t(tem);

}

if ((but4)) {

}

if ((but5)) {

}

if ((but6)) {

}

if ((but7)) {

}

if ((but8)) {

}

if ((but9)) {

}

if ((but0)) {

}

tem = tem + "0";

t(tem);

tem = tem + "9";

t(tem);

tem = tem + "8";

t(tem);

tem = tem + "7";

t(tem);

tem = tem + "6";

t(tem);

tem = tem + "5";

t(tem);

tem = tem + "4";

t(tem);

}

class AListener implements OnClickListener {

@Override

public void onClick(View arg) {

// TODO Auto-generated method stub

str1 = t().toString();

if (("")) {

} else {

double d = ouble(str1);

if (sign == "a") {

value = d;

}

if (sign == "*") {

value = value * d;

}

if (sign == "-") {

value = value - d;

}

if (sign == "/") {

value = value / d;

}

if (sign == "+") {

}

value = d + value;

}

}

t("");

if ((add)) {

}

if ((div)) {

}

if ((mult)) {

}

if ((sub)) {

}

tem = "";

sign = "-";

sign = "*";

sign = "/";

sign = "+";

}

class Listener implements OnClickListener {

@Override

public void onClick(View arg) {

// TODO Auto-generated method stub

str1 = t().toString();

if (("")) {

} else {

double d = ouble(str1);

if (sign == "a") {

}

value = d;

}

if (sign == "*") {

value = value * d;

}

if (sign == "-") {

value = value - d;

}

if (sign == "/") {

value = value / d;

}

if (sign == "+") {

value = d + value;

}

}

}

}

t(value + " ");

sign = "a";

value = 0;

tem = "";

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

android:id="@+id/etext"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_margin="5px" >

android:id="@+id/but7"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/etext"

android:text=" 7 "

android:textSize="30px" />

android:id="@+id/but8"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/etext"

android:layout_toRightOf="@id/but7"

android:text=" 8 "

android:textSize="30px" />

android:id="@+id/but9"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/etext"

android:layout_toRightOf="@id/but8"

android:text=" 9 "

android:textSize="30px" />

android:id="@+id/but4"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but7"

android:text=" 4 "

android:textSize="30px" />

android:id="@+id/but5"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but8"

android:layout_toRightOf="@id/but4"

android:text=" 5 "

android:textSize="30px" />

android:id="@+id/but6"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but9"

android:layout_toRightOf="@id/but5"

android:text=" 6 "

android:textSize="30px" />

android:id="@+id/but1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but4"

android:text=" 1 "

android:textSize="30px" />

android:id="@+id/but2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but5"

android:layout_toRightOf="@id/but1"

android:text=" 2 "

android:textSize="30px" />

android:id="@+id/but3"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but6"

android:layout_toRightOf="@id/but2"

android:text=" 3 "

android:textSize="30px" />

android:id="@+id/but0"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but1"

android:text=" 0 "

android:textSize="30px" />

android:id="@+id/add"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/etext"

android:layout_toRightOf="@id/but9"

android:text=" + "

android:textSize="30px" />

android:id="@+id/sub"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/add"

android:layout_toRightOf="@id/but6"

android:text=" - "

android:textSize="30px" />

android:id="@+id/mult"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/sub"

android:layout_toRightOf="@id/but3"

android:text=" * "

android:textSize="30px" />

android:id="@+id/dim"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but2"

android:layout_toRightOf="@id/but0"

android:text=" . "

android:textSize="30px" />

android:id="@+id/caculate"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/but3"

android:layout_toRightOf="@id/dim"

android:gravity="center"

android:text=" = "

android:textSize="30px" />

android:id="@+id/divid"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_below="@id/mult"

android:layout_toRightOf="@id/caculate"

android:text=" / "

android:textSize="30px" />