Döngü Kullanımı
package com.example.myapplication1;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
EditText Sayilar, Sayi;
Button TekSayi, CiftSayi, HepSayi;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Sayilar = findViewById(R.id.editTextTextMultiLine);
Sayi = findViewById(R.id.editTextTextPersonName);
TekSayi = findViewById(R.id.button1);
CiftSayi = findViewById(R.id.button2);
HepSayi = findViewById(R.id.button3);
}
public void Sayilar(View view){
int Sayimiz;
try {
Sayimiz = Integer.parseInt(Sayi.getText().toString());
}
catch (Exception e){
return;
}
int Bolen = Integer.parseInt(view.getTag().toString());
Sayilar.setText("");
for(int i=0; i<=Sayimiz; i++) {
if (Bolen ==1 ){ //tumu
Sayilar.setText(Sayilar.getText() + "n" + i);
}
else if(Bolen ==2 && i%Bolen ==0 ) { //cift sayilar
Sayilar.setText(Sayilar.getText() + "n" + i);
}
else if (Bolen ==3 && i%2 !=0 ) { //tek sayilar
Sayilar.setText(Sayilar.getText() + "n" + i);
}
}
}
}
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
EditText Sayilar, Sayi;
Button TekSayi, CiftSayi, HepSayi;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Sayilar = findViewById(R.id.editTextTextMultiLine);
Sayi = findViewById(R.id.editTextTextPersonName);
TekSayi = findViewById(R.id.button1);
CiftSayi = findViewById(R.id.button2);
HepSayi = findViewById(R.id.button3);
}
public void Sayilar(View view){
int Sayimiz;
try {
Sayimiz = Integer.parseInt(Sayi.getText().toString());
}
catch (Exception e){
return;
}
int Bolen = Integer.parseInt(view.getTag().toString());
Sayilar.setText("");
for(int i=0; i<=Sayimiz; i++) {
if (Bolen ==1 ){ //tumu
Sayilar.setText(Sayilar.getText() + "n" + i);
}
else if(Bolen ==2 && i%Bolen ==0 ) { //cift sayilar
Sayilar.setText(Sayilar.getText() + "n" + i);
}
else if (Bolen ==3 && i%2 !=0 ) { //tek sayilar
Sayilar.setText(Sayilar.getText() + "n" + i);
}
}
}
}
<?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:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<EditText
android:id="@+id/editTextTextMultiLine"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textMultiLine"
tools:ignore="SpeakableTextPresentCheck"
android:textAlignment="center"
android:scrollbars="vertical"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hepsi"
android:onClick="Sayilar"
android:tag="1"
tools:layout_editor_absoluteX="42dp"
tools:layout_editor_absoluteY="527dp" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Çift Sayi"
android:onClick="Sayilar"
tools:layout_editor_absoluteX="122dp"
tools:layout_editor_absoluteY="467dp"
android:tag="2"/>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="Sayilar"
android:text="Tek Sayi"
tools:layout_editor_absoluteX="221dp"
tools:layout_editor_absoluteY="521dp"
android:tag="3"/>
<EditText
android:id="@+id/editTextTextPersonName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:minHeight="48dp"
android:text=""
tools:ignore="SpeakableTextPresentCheck"
tools:layout_editor_absoluteX="56dp"
tools:layout_editor_absoluteY="371dp" />
</LinearLayout>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
<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:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<EditText
android:id="@+id/editTextTextMultiLine"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textMultiLine"
tools:ignore="SpeakableTextPresentCheck"
android:textAlignment="center"
android:scrollbars="vertical"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hepsi"
android:onClick="Sayilar"
android:tag="1"
tools:layout_editor_absoluteX="42dp"
tools:layout_editor_absoluteY="527dp" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Çift Sayi"
android:onClick="Sayilar"
tools:layout_editor_absoluteX="122dp"
tools:layout_editor_absoluteY="467dp"
android:tag="2"/>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="Sayilar"
android:text="Tek Sayi"
tools:layout_editor_absoluteX="221dp"
tools:layout_editor_absoluteY="521dp"
android:tag="3"/>
<EditText
android:id="@+id/editTextTextPersonName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:minHeight="48dp"
android:text=""
tools:ignore="SpeakableTextPresentCheck"
tools:layout_editor_absoluteX="56dp"
tools:layout_editor_absoluteY="371dp" />
</LinearLayout>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
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