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An Android Application
on
Programming Language Comparison
Submitted by
T. Y. B. Tech
Snapshots:
1- Create new project e.g.-LanguageCmp
2- Create an activity Main_Activity.java
package com.javacodegeeks.android.tts;
import
import
import
import
import
import
import
import
import
import
import
import
import
android.app.Activity;
android.content.Intent;
android.os.Bundle;
android.speech.tts.TextToSpeech;
android.speech.tts.TextToSpeech.OnInitListener;
android.view.View;
android.view.View.OnClickListener;
android.widget.ArrayAdapter;
android.widget.Button;
android.widget.Spinner;
android.widget.TextView;
android.widget.Toast;
com.javacodegeeks.android.cmp.R;
public class TtsActivity extends Activity implements OnInitListener
{
private int MY_DATA_CHECK_CODE = 0;
private Button cmpButton;
private Spinner spine1,spine2;
private TextView v3;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
String[] lang={"C","C++","Java","C#.Net"};
//start the second Activity
ArrayAdapter<String> adapter1=new
ArrayAdapter<String>(TtsActivity.this,android.R.layout.simple_spinne
r_item,lang);
ArrayAdapter<String> adapter2=new
ArrayAdapter<String>(TtsActivity.this,android.R.layout.simple_spinne
r_item,lang);
cmpButton = (Button) findViewById(R.id.compare_button);
spine1=(Spinner) findViewById(R.id.spinner1);
spine2=(Spinner) findViewById(R.id.spinner2);
v3=(TextView)findViewById(R.id.textView3);
spine1.setAdapter(adapter1);
spine2.setAdapter(adapter2);
cmpButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String txt="";
if(spine1.getSelectedItem()==spine2.getSelectedItem())
{
v3.setText("You are selected same langauge.\n");
}
else
{
//completed
if(spine1.getSelectedItem()=="C" && spine2.getSelectedItem()=="C++"
|| spine1.getSelectedItem()=="C++" && spine2.getSelectedItem()=="C")
{
txt=txt+"1. - C is Procedure oriented langauge.\n";
txt=txt+"1. - C++ is Object oriented langauge.\n\n";
txt=txt+"2. - C -> filename extensions .c .\n";
txt=txt+"2. - C++ -> filename extensions .cc, .cpp,
.cxx, .h, .hh, .hpp .\n\n";
txt=txt+"3. - C -> Designed by 'Dennis Ritchie'.\n";
txt=txt+"3. - C++ -> Designed by 'Bjarne
Stroustrup'.\n\n";
txt=txt+"4. - C -> Influenced by B (BCPL,CPL),ALGOL
68,Assembly.\n";
txt=txt+"4. - C++ -> Influenced by C, Simula, Ada
83, ALGOL 68, CLU, ML.\n";
}
//completed
if(spine1.getSelectedItem()=="C" && spine2.getSelectedItem()=="Java"
|| spine1.getSelectedItem()=="Java" &&
spine2.getSelectedItem()=="C")
{
txt=txt+"1. - C is function oriented langauge.\n";
txt=txt+"1. - Java is Object oriented
langauge.\n\n";
txt=txt+"2. - C allocating memory using
malloc
function.\n";
txt=txt+"2. - Java allocating memory using new
operator.\n\n";
txt=txt+"3. - C de-allocating memory using free
function.\n";
txt=txt+"3. - Java de-allocating memory using
automatic garbage collection.\n\n";
txt=txt+"4. - C declaring constant
using const and #define.\n";
txt=txt+"4. - Java declaring constants using
final.\n";
}
//
if(spine1.getSelectedItem()=="C" &&
spine2.getSelectedItem()=="C#.Net" ||
spine1.getSelectedItem()=="C#.Net" && spine2.getSelectedItem()=="C")
{
txt=txt+"1. - C is Procedure oriented langauge.\n";
txt=txt+"1. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"2. - C is Procedure oriented langauge.\n";
txt=txt+"2. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"3. - C is Procedure oriented langauge.\n";
txt=txt+"3. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"4. - C is Procedure oriented langauge.\n";
txt=txt+"4. - C#.Net is Object oriented
langauge.\n";
}
//completed
if(spine1.getSelectedItem()=="C++" &&
spine2.getSelectedItem()=="Java" || spine1.getSelectedItem()=="Java"
&& spine2.getSelectedItem()=="C++")
{
txt=txt+"1. - C++ is Object oriented langauge.\n";
txt=txt+"1. - Java is Pure Object oriented
langauge.\n\n";
txt=txt+"2. - C++ Strongly influenced by C syntax,
with Object-Oriented features added.\n";
txt=txt+"2. - Java Strongly influenced by C++/C
syntax.\n\n";
txt=txt+"3. - C++ Runs as native executable machine
code for the target instruction sets.\n";
txt=txt+"3. - Java Runs in a virtual machine..\n\n";
txt=txt+"4. - C++ Supports the goto statement.\n";
txt=txt+"4. - Java Supports labels with loops and
statement blocks.\n";
}
if(spine1.getSelectedItem()=="C++" &&
spine2.getSelectedItem()=="C#.Net" ||
spine1.getSelectedItem()=="C#.Net" &&
spine2.getSelectedItem()=="C++")
{
txt=txt+"1. - C++ is Procedure oriented
langauge.\n";
txt=txt+"1. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"2. - C++ is Procedure oriented
langauge.\n";
txt=txt+"2. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"3. - C++ is Procedure oriented
langauge.\n";
txt=txt+"3. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"4. - C++ is Procedure oriented
langauge.\n";
txt=txt+"4. - C#.Net is Object oriented
langauge.\n";
}
if(spine1.getSelectedItem()=="Java" &&
spine2.getSelectedItem()=="C#.Net" ||
spine1.getSelectedItem()=="C#.Net" &&
spine2.getSelectedItem()=="Java")
{
txt=txt+"1. - Java is Procedure oriented
langauge.\n";
txt=txt+"1. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"2. - Java is Procedure oriented
langauge.\n";
txt=txt+"2. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"3. - Java is Procedure oriented
langauge.\n";
txt=txt+"3. - C#.Net is Object oriented
langauge.\n\n";
txt=txt+"4. - Java is Procedure oriented
langauge.\n";
txt=txt+"4. - C#.Net is Object oriented
langauge.\n";
}
v3.setText(txt);
}
}
});
Intent checkIntent = new Intent();
checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DAT
A);
startActivityForResult(checkIntent, MY_DATA_CHECK_CODE);
}
protected void onActivityResult(int requestCode, int
resultCode, Intent data) {
if (requestCode == MY_DATA_CHECK_CODE) {
if (resultCode ==
TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
}
else {
// missing data, install it
Intent installIntent = new Intent();
installIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS
_DATA);
startActivity(installIntent);
}
}
}
@Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
Toast.makeText(TtsActivity.this,
"Text-To-Speech engine is initialized",
Toast.LENGTH_LONG).show();
}
else if (status == TextToSpeech.ERROR) {
Toast.makeText(TtsActivity.this,
"Error occurred while initializing TextTo-Speech engine", Toast.LENGTH_LONG).show();
}
}
}
3- Create layout main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Select Language"
android:textAppearance="?android:attr/textAppearanceMedium"
/>
<Spinner
android:id="@+id/spinner1"
android:layout_width="fill_parent"
android:layout_height="48dp"
/>
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Compare with"
android:textAppearance="?android:attr/textAppearanceMedium"
/>
<Spinner
android:id="@+id/spinner2"
android:layout_width="fill_parent"
android:layout_height="48dp"
/>
<Button
android:id="@+id/compare_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Compare" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text=""
android:textAppearance="?android:attr/textAppearanceMedium"
/>
</LinearLayout>
4.Android Manifest.xml file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.javacodegeeks.android.cmp"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon"
android:label="@string/app_name">
<activity
android:name="com.javacodegeeks.android.tts.TtsActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="4" />
</manifest>
Conclusion:
Thus we have studied how to develop android project in Mobile Application
Development. In this way we have created Language Comparioson application.