Exp 28
Xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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/User_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="Password:"
android:inputType="textPassword"
android:layout_below="@+id/User_email"
android:layout_marginTop="50dp"
android:padding="10dp"/>
<TextView
android:id="@+id/User_Text"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:textSize="40dp"
android:textColor="#000000"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="User Login"/>
<Button
android:id="@+id/User_login"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="@+id/User_password"
android:layout_marginTop="50dp"
android:text="Login"/>
<EditText
android:id="@+id/User_email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/User_Text"
android:layout_marginTop="50dp"
android:hint="Email:"
android:padding="10dp"
android:inputType="textEmailAddress"/>
</RelativeLayout>
Java code
package com.example.exp_28;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.icu.text.UnicodeSetSpanner;
import android.os.Bundle;
import android.util.Patterns;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
Button login;
EditText Uemail,Upass;
public String Uuseremail,Upassword;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
login = findViewById(R.id.User_login);
login.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
check();
}
});
Uemail = findViewById(R.id.User_email);
Upass = findViewById(R.id.User_password);
}
public void check(){
Uuseremail = Uemail.getText().toString().trim();
Upassword = Upass.getText().toString().trim();
if(Uuseremail.isEmpty()) {
Uemail.setError("Enter an e-mail,it is blank");
Uemail.requestFocus();
return;
}
if(!Patterns.EMAIL_ADDRESS.matcher(Uuseremail).matches()){
Uemail.setError("Enter an e-mail");
Uemail.requestFocus();
return;
}
if(Upassword.isEmpty()) {
Upass.setError("Enter a password , it is blank");
Upass.requestFocus();
return;
}
if(Upassword.length()<6){
Upass.setError("Minimum length is 6 characters");
Upass.requestFocus();
return;
}
if(Uuseremail.equals("sonali.pawar@ves.ac.in") &&
Upassword.equals(“123abc")){
Toast.makeText(MainActivity.this,"Welcome
User",Toast.LENGTH_LONG).show();
Intent intent = new
Intent(MainActivity.this,Empty_Activity.class);
startActivity(intent);
}
else{
Toast.makeText(this,"Wrong email or
password",Toast.LENGTH_LONG).show();
}
}
}
empty activity
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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=".Empty_Activity">
</androidx.constraintlayout.widget.ConstraintLayout>
Java
package com.example.exp_28;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
public class Empty_Activity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_empty);
}
}
output
