The method opendatabasestring null is undefined for the type

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It is an assignment value. It can be assigned to a variable which indicates that a variable does not point any object. It is not an assignment value.

It means a variable has been declared but has not yet been assigned a value. The null value is a primitive value which represents the null, empty, or non-existent reference. The undefined value is a primitive value, which is used when a variable has not been assigned a value. If methods and variables are to be used from other classes, make them public. Abid Ramay wrote: ok.. Jesper's Blog - Pluralsight Author Page.

Forum: Beginning Java. The method is undefined for the type. Abid Ramay. Optional 'thank-you' note:. Joel Christophel. I like Look at your brackets for your getChannel method. Hi 1 thanks for the tip. Tony Docherty. Reusing a local variable name is perfectly acceptable provided the name is appropriate for the information the variable holds as it does in your example. Save Article. Like Article. Hey geek! The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof.

But before you tackle the big projects, we suggest you start by learning the basics. Now at it's lowest price ever! Previous What are undeclared and undefined variables in JavaScript? Next JavaScript Check the existence of variable. Recommended Articles. How to change the value of a global variable inside of a function using JavaScript? Article Contributed By :.