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Except public, protected and, private constructor does not allow any other modifier. When you use a final keyword with a method or constructor it cannot be overridden. But, a constructor in Java cannot be overridden therefore, there is no need of using the final keyword with the constructor. Since you cannot override a constructor you cannot provide body to it if it is made abstract. Therefore, you cannot use abstract keyword with the constructor. If you want to invoke a member of a class before instantiating the class you need to use static before it. But, contractors are called ... Read More
An abstract keyword is used to declare methods abstract methods and abstract classes. Once a method is declared abstract we should not specify body for those. Example public abstract class Sample{ public abstract demo(){ } } Error Sample.java:2: error: invalid method declaration; return type required public abstract demo(){ ^ 1 error And once a class is declared abstract it cannot be instantiated. Example public abstract class Sample{ public abstract void demo(); public static void main(String args[]){ new Sample(); } } Error C:\Sample>javac Sample.java Sample.java:4: error: Sample is abstract; cannot be instantiated new Sample(); ^ 1 error
It would be easy to guess if you have shared the full query. It seems you have not defined #temp_table. You might need to define temp table as global but it could sum up to other issues.
The Java.lang.Class class instance represent classes and interfaces in a running Java application. It has no public constructor. Example Following is the example demonstrates the usage of the class Class. The java.lang.Class.getCanonicalName() method returns the canonical name of the underlying class as defined by the Java Language Specification. It returns null if the class does not have a canonical name. Live Demo import java.lang.*; public class ClassDemo { public static void main(String[] args) { ClassDemo c = new ClassDemo(); Class cls = ... Read More
BAPI is an abbreviation for Business Application Programming Interface.BAPI’s are proprietary interfaces of SAP. These provide standard access to SAP solution with all the semantic checks already present. Using BAPI interfaces, we can perform both synchronous and asynchronous processing of data.
If super class and sub class have same methods including name, return type and parameters, and if you try to call it using the object of the sub class Then the method in the sub class is invoked. Constructor looks like method but it is not. It does not have a return type and its name is same as the class name. But, a constructor cannot be overridden. If you try to write a super class’s constructor in the sub class compiler treats it as a method and expects a return type and generates a compile time error. Example ... Read More
This can be achieved in multiple ways. You can either use a SAP DI documents, an open SQL or use data transfer workbench for this purpose.You can use a direct SQL write as this is one of straight way to do this. It is also possible to use SAP-DI Documents object to iterate over the Purchase Orders.One more option is using Data Transfer Workbench (DTW), where you export it to a file and then using DTW. It also provides error handling incase any exception occurs.
Yes, a local variable can be public, private, protected or default.
There is nothing like standard but you need to specify all required details for a successful connection.XXXX- H/IP Address/S/Port NumberHere H stands for Host, IP Address is the IP Address, S stands for Port Number
An instance variable is marked transient to point the JVM to skip the actual variable once serializing the thing containing it. This modifier is included in the statement that creates the variable, preceding the class or data type of the variable. Example public class Employee implements java.io.Serializable { public String name; public String address; public transient int SSN; public int number; public void mailCheck() { System.out.println("Mailing a check to " + name + " ... Read More