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toString method is a very important method) 19. general programming: all values of any class type can be replaced by variables of the object class. 20. array list: ArrayList dynamic array list, which is a class library defined in java. uitl package. The array size can be adjusted automatically. 21. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will

adjusted automatically. 21. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs. 22. the class provides powerful functional reflection for programming programs that can dynamically manipulate Java code. This function is especially useful for JavaB

. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs. 22. The class provides powerful functional reflection for programming programs that can dynamically manipulate Java code. This function is particularly useful for JavaBeans. Using Reflecti

returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs. 22. The class provides powerful functional reflection for programming programs that can dynamically manipulate Java code. This function is especially useful for JavaBeans. Using Reflection Java can support tools that VB programmers are used

calling, 16. abstract class: specifies that the class of one or more abstract methods must be defined as abstract: public abstract string getdescripition 17. Every class in Java is extended from the object class. 18. the equal and tostring methods in the object class. EQUAL is used to test whether an object is equal to another object. tostring returns a string representing the object. Almost every class will reload the method to return the correct representation of the current state. (The tostr

object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs. 22. the class provides powerful functional reflection for programming programs that can dynamically manipulate java code. This function is especially useful for JavaBeans. Using Reflection Java can support tools that VB program

array size.21. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs.22. The class provides powerful functional reflection for programming programs that can dynamically manipulate java code. This function is especially useful for JavaBeans. Using Re

should not declare the data members in an abstract base class. The idea of an interface is certainly true, but it is also justified to put the shared data in base class.Novice C + + (like me) is often surprised to find that a person can define and invoke a pure virtual function; However, they can only be called statically, not through virtual mechanisms. For example, the following code is valid:voidconst{ // pre-defined pure virtual function Interface () constvoid conceretederived::interfac

programming: All values of any class type can be substituted with the object class variable.20. Array list: ArrayList dynamic array list, is a class library, defined in the JAVA.UITL package, can automatically adjust the array of the ColonelThe GetClass method in the 21.class class object class returns an instance of the Ckass type, the class that is contained in the main method is loaded when the program starts, the virtual machines load all the cla

. Dynamic calls take longer than static calls.16. Abstract class: A class that prescribes one or more abstract methods must itself be defined as abstract.Example: Public abstract string GetdescripitionEach of the classes in 17.Java is extended from the object class.The equal and ToString methods in the 18.object class.Equal is used to test whether an object is equal to another object.ToString Returns a String representing the object, and almost every class overloads the method to return the corr

as abstract.Example: Public abstract string Getdescripition17. Each class in Java is extended from the object class.18. The equal and ToString methods in the object class.Equal is used to test whether an object is equal to another object.ToString Returns a String representing the object, and almost every class overloads the method to return the correct representation of the current state.(The ToString method is a very important method)19. General programming: All values of any class type can be

methods must itself be defined as abstract. Example: Public abstract string GetdescripitionEach class in 17.Java is extended from the object class.The equal and ToString methods in the 18.object class. Equal is used to test whether an object is equal to another object. ToString Returns a String representing the object, almost every class overloads the method to return the correct representation of the current state. (The ToString method is a very important method)19. Universal Programming: No m

very important method) 19. Universal Programming: All values of any class type can be substituted with variables of object class. 20. Array list: ArrayList dynamic array list, is a class library, defined in the JAVA.UITL package, can automatically adjust the array of the Colonel. The GetClass method in the 21.class class object class returns an instance of the Ckass type, the class that is included in the main method when the program starts is loa

: ArrayList dynamic array list, is a class library, defined in the JAVA.UITL package, can automatically adjust the size of the array. The GetClass method in the 21.class class object class returns an instance of the Ckass type, the class that is included in the main method when the program starts is loaded, the virtual confidential loads all the classes he needs, and each loaded class loads the class it needs. The 22.class class provides powerful

method is a very important method) 19. Universal Programming: All values of any class type can be substituted with variables of object class. 20. Array list: ArrayList dynamic array list, is a class library, defined in the JAVA.UITL package, can automatically adjust the size of the array. The GetClass method in the 21.class class object class returns an instance of the Ckass type, the class that is included in the main method when the program s

type can be substituted with variables of object class.20. Array list: ArrayList dynamic array list, is a class library, defined in the JAVA.UITL package, can automatically adjust the size of the array.The GetClass method in the 21.class class object class returns an instance of the Ckass type, the class that is included in the main method when the program starts is loaded, the virtual confidential loads all the classes he needs, and each loaded clas

variables of the object class. 20. array list: ArrayList dynamic array list. It is a class library defined in java. uitl package and can automatically adjust the size of the array. 21. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs. 22. Th

package and can automatically adjust the array size.21. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load all the classes it needs, each loaded class must load the class it needs.22. the class provides powerful functional reflection for programming programs that can dynamically manipulate java code. This function is

method) 19. general programming: all values of any class type can be replaced by variables of the object class. 20. array list: ArrayList dynamic array list. It is a class library defined in the java. uitl package and can automatically adjust the array size. 21. the getclass method in the class object class returns an instance of the ckass type. When the program starts, the class contained in the main method will be loaded, and the VM will load al

class object class returns an instance of the Ckass type, the class that is contained in the main method is loaded when the program starts, the virtual machines load all the classes that he needs, and each loaded class loads the classes it needs.The 22.class class provides powerful functional reflection for writing programs that dynamically manipulate Java code, a feature that is particularly useful for JavaBeans, and uses reflective Java to support