Can static variables be called using className.variableName in Java?

Rahul Sharma
Updated on 30-Jul-2019 22:30:20
Class variables also known as static variables are declared with the static keyword There would only be one copy of each class variable per class, regardless of how many objects are created from it. You can access a class variable without instantiation using the class name as className.variableName. Example Live Demo public class Test{ static int num = 92; public static void main(String args[]) throws Exception { System.out.println(Test.num); } } Output 92

Alter SAP standard code not working

Updated on 30-Jul-2019 22:30:20
As you have mentioned you require access key for the change to be complete, but this key is mapped to SAP specific installation. In short, you need to retrieve this key from the SAP.I would still suggest not to go for the change. You can seek other alternatives for this. You can analyze the feasibility of implicit enhancements usage. The reason I am recommending alternatives is whenever you would have an upgrade in SAP, you would require a change which is cumbersome.

What is the number wrapper class and its methods in Java?

Updated on 30-Jul-2019 22:30:20
The Number class (abstract) of the java.lang package represents the numeric values that are convertible to primitive types byte, double, float, int, long, and short. Following are the method provided by the Number class of the java.lang package. Sr.No Method & Description 1 byte byteValue() This method returns the value of the specified number as a byte. 2 abstract double doubleValue() This method returns the value of the specified number as a double. 3 abstract float floatValue() This method returns the value of the specified number as a float. ... Read More