Q. WAP to create two screens. First screen will take one number input from user.
After click on
Factorial button, second screen will open and it should display factorial of the same number.
Also specify which type of intent you will use in this case.
XML File:
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
>
<EditText
android:id="@+id/t"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="75dp"
android:layout_y="248dp"
android:ems="10"
android:hint="Enter Number:"
android:inputType="text" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="139dp"
android:layout_y="354dp"
android:onClick="Fact"
android:text="Factorial" />
</AbsoluteLayout>
JAVA File:
package com.example.practical183;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
EditText t1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void Fact(View v){
t1=(EditText) findViewById(R.id.t);
String num=t1.getText().toString();
Intent i=new Intent(getApplicationContext(), MainActivity2.class);
i.putExtra("Num",num);
startActivity(i);
}
}
XML File 2:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity2">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint=""
android:textSize="25dp"
android:textStyle="bold"
tools:layout_editor_absoluteX="149dp"
tools:layout_editor_absoluteY="72dp" />
</LinearLayout>
JAVA File 2:
package com.example.practical183;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity2 extends AppCompatActivity {
TextView t;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
t=(TextView) findViewById(R.id.textView);
Intent i=getIntent();
int n=Integer.parseInt(i.getStringExtra("Num"));
int factorial=1;
for(int x=2;x<=n;x++) {
factorial *= x;
}
t.setText("Factorial="+factorial);
}
}
OUTPUT:
