Dollar to Rupee and Rupee to Dollar app .

Create android app which convert  Dollar to Rupee and Rupee to Dollar app .

   Frontend Language :- XML  😀😁
   Backend Language : Java  

     Created By :-Shraddha Nand Pandey     




XML CODE : - 

<?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"
    android:background="#673AB7"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="420dp"
        android:layout_height="209dp"
        android:background="#FEE600"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.555"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0"
        app:srcCompat="@drawable/h" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#FFEB3B"
        android:text="CURRENCY EXCHANGE"
        android:textColor="#000000"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView"
        app:layout_constraintVertical_bias="0.036" />

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="147dp"
        android:layout_height="80dp"
        android:layout_marginTop="28dp"
        app:layout_constraintEnd_toStartOf="@+id/imageView4"
        app:layout_constraintHorizontal_bias="0.432"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView3"
        app:srcCompat="@drawable/money" />

    <ImageView
        android:id="@+id/imageView4"
        android:layout_width="147dp"
        android:layout_height="81dp"
        android:layout_marginTop="28dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/imageView2"
        app:layout_constraintTop_toBottomOf="@+id/textView3"
        app:srcCompat="@drawable/rupee" />

    <EditText
        android:id="@+id/etDo"
        android:layout_width="109dp"
        android:layout_height="59dp"
        android:ems="10"
        android:inputType="numberDecimal"
        android:textColor="#FFEB3B"
        app:layout_constraintBottom_toTopOf="@+id/btnAns"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.17"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView2"
        app:layout_constraintVertical_bias="0.222" />

    <EditText
        android:id="@+id/etRu"
        android:layout_width="109dp"
        android:layout_height="59dp"
        android:ems="10"
        android:inputType="numberDecimal"
        android:textColor="#FFEB3B"
        app:layout_constraintBottom_toTopOf="@+id/btnAns2"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.823"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView4"
        app:layout_constraintVertical_bias="0.2" />

    <ImageView
        android:id="@+id/imageView5"
        android:layout_width="144dp"
        android:layout_height="78dp"
        android:layout_marginStart="32dp"
        android:layout_marginBottom="32dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/etDo"
        app:layout_constraintVertical_bias="0.923"
        app:srcCompat="@drawable/india" />

    <ImageView
        android:id="@+id/imageView6"
        android:layout_width="146dp"
        android:layout_height="81dp"
        android:layout_marginBottom="32dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.653"
        app:layout_constraintStart_toEndOf="@+id/imageView5"
        app:layout_constraintTop_toBottomOf="@+id/etRu"
        app:layout_constraintVertical_bias="0.929"
        app:srcCompat="@drawable/united" />

    <Button
        android:id="@+id/btnAns"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:layout_marginTop="199dp"
        android:layout_marginBottom="180dp"
        android:text="SUBMIT"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.102"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/imageView2"
        app:layout_constraintVertical_bias="0.403" />

    <Button
        android:id="@+id/btnAns2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:layout_marginTop="199dp"
        android:layout_marginBottom="180dp"
        android:text="SUBMIT"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.814"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/imageView2"
        app:layout_constraintVertical_bias="0.413" />

    <TextView
        android:id="@+id/tvIN"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="INDIA"
        android:textColor="#FFEB3B"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.242"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView5"
        app:layout_constraintVertical_bias="0.553" />

    <TextView
        android:id="@+id/tvUs"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="U.S.A"
        android:textColor="#FFEB3B"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.633"
        app:layout_constraintStart_toEndOf="@+id/btnAns"
        app:layout_constraintTop_toBottomOf="@+id/imageView6"
        app:layout_constraintVertical_bias="0.523" />

</androidx.constraintlayout.widget.ConstraintLayout>
JAVA CODE;-

package com.example.dolartorupee;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import java.security.PrivateKey;
import java.util.Currency;
import java.util.PrimitiveIterator;

public class MainActivity extends AppCompatActivity {

    private EditText Do;
    private EditText Ru;
    private Button Ans;
    private Button Ans2;
    private TextView In;
    private TextView Us;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Do = (EditText)findViewById(R.id.etDo);
        Ru =(EditText)findViewById(R.id.etRu);
        Ans = (Button) findViewById(R.id.btnAns);
        Ans2 =(Button)findViewById(R.id.btnAns2);
        In = (TextView)findViewById(R.id.tvIN);
        Us = (TextView)findViewById(R.id.tvUs);


        Ans2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                float currency = Float.parseFloat(Ru.getText().toString());
                float Ans2 = (float)(currency*0.014);
                Us.setText("$ "+String.valueOf(Ans2));
            }
        });


        Ans.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               float currency = Float.parseFloat(Do.getText().toString());
               float Ans = (float) (currency*73.95);
                In.setText("₹  "+ String.valueOf(Ans));
            }
        });

        }
    }




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