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/MainActivity.java

Created May 20, 2015 20:44
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MainActivity.java
package com.example.android.justjava;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.TextView;
import java.text.NumberFormat;
/**
* This app displays an order form to order coffee.
*/
public class MainActivity extends ActionBarActivity {
int quantity = 2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
/**
* This method is called when the plus button is clicked.
*/
public void increment(View view) {
quantity = quantity + 1;
display(quantity);
}
/**
* This method is called when the minus button is clicked.
*/
public void decrement(View view) {
quantity = quantity - 1;
display(quantity);
}
/**
* This method is called when the order button is clicked.
*/
public void submitOrder(View view) {
int quantity = 5;
display(quantity);
displayPrice(quantity * 5);
}
/**
* This method displays the given quantity value on the screen.
*/
private void display(int number) {
TextView quantityTextView = (TextView) findViewById(
R.id.quantity_text_view);
quantityTextView.setText("" + number);
}
/**
* This method displays the given price value on the screen.
*/
private void displayPrice(int number) {
TextView priceTextView = (TextView) findViewById(R.id.price_text_view);
priceTextView.setText(NumberFormat.getCurrencyInstance().format(number));
}
}
@hafsabelka
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UPDATE

`package com.example.justjava;

import androidx.appcompat.app.AppCompatActivity;

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

import java.text.NumberFormat; import java.util.Locale;

/**

  • This app displays an order form to order coffee
    /
    public class MainActivity extends AppCompatActivity {
    int quantity = 2;
    @OverRide
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    }
    /    *

    • This method is called when the plus button is clicked.
      */
      public void increment(View view) {
      quantity = quantity + 1;
      display(quantity);
      }

    /**

    • This method is called when the minus button is clicked.
      */
      public void decrement(View view) {
      quantity = quantity - 1;
      display(quantity);
      }

    /**

    • This method is called when the order button is clicked.
      */
      public void submitOrder(View view) {
      int quantity = 5;
      display(quantity);
      displayPrice(quantity * 10);
      }

    /**

    • This method displays the given quantity value on screen.
      */
      private void display(int number) {
      TextView quantityTextView = findViewById(R.id.quantity_text_view);
      quantityTextView.setText("" + number);
      }

    /**

    • This method displays the given price value on the screen.
      */
      private void displayPrice(int number) {
      TextView priceTextView = findViewById(R.id.price_text_view);
      priceTextView.setText(NumberFormat.getCurrencyInstance(new Locale("en", "US")).format(number));
      }
      }
      `

plz can u help me.. i send to u in email will u plz answer

@hafsabelka
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hafsabelka commented Aug 6, 2022 •
edited
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hi i need help any one conntect me and help me in cod plz

add me on discord .... DzHafsa 1426

@AnwaarHamdi
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AnwaarHamdi commented Aug 7, 2022 via email

@hafsabelka
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hafsabelka commented Aug 7, 2022 via email

@hafsabelka
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hafsabelka commented Aug 7, 2022 via email

@jkm-github
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jkm-github commented Aug 9, 2022 via email

@Saphiriela
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package com.example.justjava;

import android.R
import android.os.Bundle
import android.view.View
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import java.text.NumberFormat

/**

This app displays an order form to order coffee.
*/
class MainActivity : AppCompatActivity() {

var quantity = 0

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(com.example.justjava.R.layout.activity_main)
}

/**
 * This method is called when the PLUS button is clicked.
 */
fun increment (view: View?) {
    quantity = quantity + 1
    display(quantity)
}

/**
 * This method is called when the MINUS button is clicked.
 */
fun decrement (view: View?) {
    quantity = quantity - 1
    display(quantity)
}

/**
 * This method is called when the ORDER button is clicked.
 */
fun submitOrder(view: View?) {
    display(quantity)
    displayPrice(quantity * 50)
}

/**
 * This method displays the given quantity value on the screen.
 */
private fun display(number: Int) {
    val quantityTextView = findViewById<View>(com.example.justjava.R.id.quantity_text_view) as TextView
    quantityTextView.text = "" + number
}

/**
 * This method displays the given price on the screen.
 */
private fun displayPrice(number: Int) {
    val priceTextView = findViewById<View>(com.example.justjava.R.id.price_text_view) as TextView
    priceTextView.setText(NumberFormat.getCurrencyInstance().format(number))
}

}

@HAXAZE
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HAXAZE commented Dec 16, 2022

CAN YOU PROVIDE ME THE XML CODE MY XML CODE HAS SOME ERROR

@Berhanus
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Berhanus commented Dec 13, 2024 •
edited
Loading

package com.example.myapplication2;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import java.text.NumberFormat;
public class MainActivity extends AppCompatActivity {
int quantity=2;
@OverRide
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void decrement(View view)
{
quantity = quantity - 1;
display(quantity);
}
public void increment(View view)
{
quantity = quantity + 1;
display(quantity);
}
public void submitOrder(View view){
display(quantity);
displayPrice(quantity*5);
}
private void display(int number){
TextView quantityTextView= (TextView) findViewById(R.id.quantity_text_view);
quantityTextView.setText("" + number);
}
private void displayPrice(int number){
TextView priceTextView = (TextView) findViewById(R.id.price);
priceTextView.setText(NumberFormat.getCurrencyInstance().format(number));
}

}

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