How do you set a variable to an Edit Text Box

I'm new to android developing. I have a value in a variable that I need to set = to a edit text box. How do you do this? I keep getting a null exception error.

myStockPrice = (EditText)findViewById(R.id.txtStockPrice);

ManualPrice = input1.getText().toString().trim();

else if (ManualPrice != null)
    {
    myStockPrice.se开发者_运维技巧tText(ManualPrice);

    }

Thanks

Hi try this may be in manualprice has no any value so you get a error :

 myStockPrice = (EditText)findViewById(R.id.txtStockPrice);  

    ManualPrice = input1.getText().toString().trim();  

    else if (ManualPrice.length() > 0) 
    {
         myStockPrice.setText(ManualPrice);      
    } 

myStockPrice could be null because the edittext you are looking for is not in the layout you set with secContentView. is input1 a textview or an edittext? If so check if the belongs to the same layout you set with setContentView.. As others ask you, giving a bit of bt could better help to understand your problem

Assuming that input1 is not null, this should solve your problem,

myStockPrice = (EditText)findViewById(R.id.txtStockPrice);

ManualPrice = input1.getText().toString();

if (ManualPrice != null)
{
    myStockPrice.setText(ManualPrice.trim());
}