android - passing null value as a parameter in java -


i have method insert datas sq-lite db

 public long insertdetails(int id,string batchname,double weight,         double yield) {     contentvalues insertcontentvalues = assesmentinsertvalues(id,batchname,weight,yield);     return this.data.insert("tb_labassessment", null, insertcontentvalues); }

from main class m passing values parameter above function, in cases want pass weight , yield null values.

string batchname; double weight; double yield; dbadapter.insertassesmentdetails(objclsproduct.getid(),batchname,weight,yield)

how can pass values of weight , yield null here.

you can't pass primitive null. there's 2 ways this- first make function take double- class version of double. other pass in unused value, such -1, mean null. requires there reasonable default value though.


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