- Same Length Attributes Method Overloading.
- Different Length Attributes Method Overloading.
1.Same Length Attributes Method Overloading.
Step 1 : Select
File -> New -> Project -> Android Application Project (or)
Android Project. Fill the forms and click "Finish" button. If you have
any doubt regarding create a new project Click Here.
Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:text="Polymorphism - Same Length By Hemanth Somaraju"
android:textSize="20dp" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp"
android:text="Get" />
<TextView
android:id="@+id/textView2"
android:textSize="18dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="220dp"
android:text="1" />
<TextView
android:id="@+id/textView3"
android:textSize="18dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="270dp"
android:text="2" />
<TextView
android:id="@+id/textView4"
android:textSize="18dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="320dp"
android:text="3" />
<TextView
android:id="@+id/textView5"
android:textSize="18dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="370dp"
android:text="4" />
</RelativeLayout>
Step 3 : Open src -> package -> MainActivity.java and add following code :
package com.gudivada.hemanthsomaraju;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
Button b;
TextView tv1, tv2, tv3, tv4;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b = (Button) findViewById(R.id.button1);
tv1 = (TextView) findViewById(R.id.textView2);
tv2 = (TextView) findViewById(R.id.textView3);
tv3 = (TextView) findViewById(R.id.textView4);
tv4 = (TextView) findViewById(R.id.textView5);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
SubClass obj = new SubClass();
String str1 = obj.method_overloading(10, 10);
String str2 = obj.method_overloading(10, (float)10.123);
String str3 = obj.method_overloading((float)10.123, 10);
String str4 = obj.method_overloading((float)10.123, (float)10.123);
tv1.setText(str1);
tv2.setText(str2);
tv3.setText(str3);
tv4.setText(str4);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
class SubClass {
String method_overloading(int a, int b)
{
return "(int, int) Method Called";
}
String method_overloading(int a, float b)
{
return "(int, float) Method Called";
}
String method_overloading(float a, int b)
{
return "(float, int) Method Called";
}
String method_overloading(float a, float b)
{
return "(float, float) Method Called";
}
}
Step 4 : Open AndroidManifest.xml and add following code :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.gudivada.hemanthsomaraju"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.gudivada.hemanthsomaraju.MainActivity"
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>
</manifest>
Step 5 : Our output will be like this :
2.Different Length Attributes Method Overloading.
Step 1 : Select
File -> New -> Project -> Android Application Project (or)
Android Project. Fill the forms and click "Finish" button. If you have
any doubt regarding create a new project Click Here.
Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp"
android:text="Polymorphism" />
<TextView
android:id="@+id/textView1"
android:textSize="15dp"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="100dp" />
<TextView
android:id="@+id/textView2"
android:textSize="15dp"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="150dp" />
<TextView
android:id="@+id/textView3"
android:textSize="15dp"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="200dp" />
<TextView
android:id="@+id/textView4"
android:textSize="15dp"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="250dp" />
<TextView
android:id="@+id/textView5"
android:textSize="15dp"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="300dp" />
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:layout_centerHorizontal="true"
android:text="Hemanth Somaraju"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
Step 3 : Open src -> package -> MainActivity.java and add following code :
package com.gudivada.hemanthsomaraju;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
Button poly;
TextView t1, t2, t3, t4, t5;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
poly = (Button) findViewById(R.id.button1);
t1 = (TextView) findViewById(R.id.textView1);
t2 = (TextView) findViewById(R.id.textView2);
t3 = (TextView) findViewById(R.id.textView3);
t4 = (TextView) findViewById(R.id.textView4);
t5 = (TextView) findViewById(R.id.textView5);
poly.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
SubClass obj = new SubClass ();
t1.setText(String.valueOf(obj.display()));
t2.setText(String.valueOf(obj.display(11)));
t3.setText(String.valueOf(obj.display((float)15.26)));
t4.setText(String.valueOf(obj.display(11, 20)));
t5.setText(obj.display("Overloading"));
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
class SubClass
{
int display()
{
int a = 23;
return a;
}
int display(int temp1)
{
int a = 23;
a = a + temp1;
return a;
}
int display(int temp1, int temp2)
{
int c;
c = temp1 + temp2;
return c;
}
float display(float temp1)
{
float c;
c = temp1 * 123 ;
return c;
}
String display(String temp1)
{
String str = "Method ";
str = str.concat(temp1);
return str;
}
}
Step 4 : Open AndroidManifest.xml and add following code :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.gudivada.hemanthsomaraju"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.gudivada.hemanthsomaraju.MainActivity"
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>
</manifest>
Step 5 : Our output will be like this :
