How to call a method from one class to another class when both are TestNG classes up vote

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sachin patil

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Jun 10, 2018, 9:12:32 AM6/10/18
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Guys, I am facing above problem which i mentioned in the subject line.
Can you guys please me on this?

Thanks
Sachin

Cassian Raja Thomas

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Jun 10, 2018, 1:05:44 PM6/10/18
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What do you mean by calling method?? Are you trying to call one @Test method from another @Test method??

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sachin patil

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Jun 11, 2018, 1:52:29 AM6/11/18
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I have two classes as mentioned below.


public class ClassA {
public void method1()
    {
        System.out.println("Selenium_1");
    }
   public void method2()
    {
        System.out.println("Selenium_2");
    }
    
}
=============================
public class ClassB {

public static void main(String[] args) {
       
 
 System.out.println("executing class A");
 ClassA rt1=new ClassA();
rt1.method1();
rt1.method1();
   
}
 
}

After running the ClassB it's executed properly but when i execute my orginal script which has more code(from real project) i am getting NullPointer exception.

Why this is happening?

Please help me on this.


Best Regard
Sachin Patil
+91-9552619077


On Sun, Jun 10, 2018 at 10:35 PM, Cassian Raja Thomas <rajac...@gmail.com> wrote:
What do you mean by calling method?? Are you trying to call one @Test method from another @Test method??
On Sun, Jun 10, 2018, 6:42 PM sachin patil <sachin....@gmail.com> wrote:
Guys, I am facing above problem which i mentioned in the subject line.
Can you guys please me on this?

Thanks
Sachin

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Cassian Raja Thomas

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Jun 11, 2018, 2:47:02 AM6/11/18
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These classes looks good to be executed. But unless you show the actual code, I will not be able to provide any help. Also, try to debug the code using your IDE to find out the line where there is a null reference.

Thanks & Regards,
Cassian Raja .T

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Sowjanya Karumuri

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Jun 11, 2018, 1:17:27 PM6/11/18
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You need to have driver in ur constructor in both classes. Then it will work. 

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sachin patil

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Jun 15, 2018, 7:20:27 AM6/15/18
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Hello,

I am sharing real code with you as i am getting error called "Exception in thread "main" java.lang.NullPointerException" while method from one class to another class.
Please look into ClassA and ClassB.
Help me with this.

public class ClassA {
public static AndroidDriver driver;
public void launch() throws MalformedURLException
{
DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability("deviceName", "Honor");
caps.setCapability("platformName", "Android");
caps.setCapability("platformVersion", "7.0");
     caps.setCapability("udid", "192.168.157.101:5555");
caps.setCapability("appPackage", "com.torenzo.torenzocafe");
caps.setCapability("appActivity", "com.torenzo.torenzopos.StartScreenActivity");
driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), caps);
}
public void login()
{
driver.findElement(By.id("com.torenzo.torenzocafe:id/submit_login")).click();
driver.findElement(By.id("com.torenzo.torenzocafe:id/clock_in")).click();
driver.findElement(By.id("com.torenzo.torenzocafe:id/role_name")).click();
  System.out.println("on home page");
}


}

==================
public class ClassB {
public static AndroidDriver driver;
public static void main(String[] args) throws MalformedURLException {
driver.manage().timeouts().implicitlyWait(20,TimeUnit.SECONDS);
ClassA call = new ClassA();
call.launch();
call.login();
ClassB call1 = new ClassB();
call1.TakeoutOrder();
}

public void TakeoutOrder(){

System.out.println("Order creation process is started");
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
driver.findElement(By.id("com.torenzo.torenzocafe:id/new_order_create_btn_layout")).click();
String order_no=driver.findElement(By.id("com.torenzo.torenzocafe:id/order_no")).getText();
System.out.println("Order number is =>" + order_no);
driver.findElement(By.xpath("//android.widget.TextView[@text='All Items']")).click();
for (int i=3; i<5; i++)
{ 
driver.findElement(By.xpath("//android.widget.LinearLayout[contains(@resource-id,'grid_menu_layout') and @index="+i+"]")).click();
}
driver.findElement(By.id("com.torenzo.torenzocafe:id/add_guest_btn")).click();
driver.findElement(By.id("com.torenzo.torenzocafe:id/add_guest_two")).click();
driver.findElement(By.id("com.torenzo.torenzocafe:id/add_guest_done")).click();
for (int g=1; g<3; g++)
{
driver.findElement(By.xpath("//android.widget.LinearLayout[contains(@resource-id,'card_view') and @index="+g+"]")).click();
for (int i=1; i<3; i++)
{
driver.findElement(By.xpath("//android.widget.LinearLayout[contains(@resource-id,'grid_menu_layout') and @index="+i+"]")).click();
}
}
}
}







Best Regard
Sachin Patil
+91-9552619077


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sachin patil

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Jun 15, 2018, 8:00:28 AM6/15/18
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Can you please send modify the code like how it's work for calling a method from one class to another class for TestNG framework and simple java class file as well as i made above class file(automation). 

Best Regard
Sachin Patil
+91-9552619077


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bharathi sriram

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Jun 15, 2018, 2:26:32 PM6/15/18
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By importing classes and instantiating.




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Thanks and Best Regards,
Bharathi

sachin patil

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Jun 17, 2018, 3:22:05 AM6/17/18
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Can you please give example?

On Fri, 15 Jun 2018, 11:56 pm bharathi sriram, <bsh...@gmail.com> wrote:
By importing classes and instantiating.



On Sun, Jun 10, 2018 at 6:09 AM, sachin patil <sachin....@gmail.com> wrote:
Guys, I am facing above problem which i mentioned in the subject line.
Can you guys please me on this?

Thanks
Sachin

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Thanks and Best Regards,
Bharathi

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Scott Babcock

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Jun 17, 2018, 8:44:53 PM6/17/18
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In class B, I don't see any code that initializes the [driver] field. You just launch straight into trying to use whatever might be stored there. Since this field is uninitialized, you get NullPointerException.
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sachin patil

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Jun 18, 2018, 12:35:20 AM6/18/18
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Here you can see...
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