I am trying to create a type of triangle app for my homework but when I tried to use if statement in java, for some reason, when I click on the "Generate Button", it keeps on showing the " Scalene Triangle: No Congruent Sides" , even thought my inputs are : 2,2,3 which should be an Isosceles Triangle. Please help. Is my logic wrong or something? Thanks a lot.
Java code: package com.example.trianglegame;
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class TriangleGame extends Activity {// implement-have to use all of the
// methods
// set up the variables here
Button Gen;
EditText Input1;
EditText Input2;
EditText Input3;
TextView Output1;
TextView Output2;
TextView Output3;
TextView Display;
Editable a;
Editable b;
Editable c;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.game);
Input1 = (EditText) findViewById(R.id.editText1);
a = Input1.getText();
Input2 = (EditText) findViewById(R.id.editText2);
b = Input2.getText();
Input3 = (EditText) findViewById(R.id.editText3);
c = Input3.getText();
Display = (TextView) findViewById(R.id.textView5);
// display edit text
Gen = (Button) findViewById(R.id.button1);
Gen.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if ((a == b && b != c) || (a == c && b != c)
|| (b == c && a != c)) {
Display.setText("Isosceles Triangle: 2 Congruent Sides");
} else if (a == b && a == c && b == c) {
Display.setText("Equilateral Triangle:All sides are equal");
}
else if (a != b && a != c && b != c) {
Display.setText("Scalene Triangle: No Congruent Sides");
} else {
Display.setText("Error");
}
}
});
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
}
xml code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/enter_text" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/side_1" />
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/type_hint"
android:inputType="number" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/side_2" />
<EditText
android:id="@+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/type_hint"
android:inputType="number" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="@string/type_hint"
android:text="@string/side_3" />
<EditText
android:id="@+id/editText3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/type_hint"
android:inputType="number" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/generate" />
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
