What are the differences between a HashMap and a Hashtable in Java? How do I generate random integers within a specific range in Java? How can I create a memory leak in Java? What is the difference between public, protected, package-private and private in Java? What's the differen...
Access level modifiers determine whether other classes can use a particular field or invoke a particular method. There are two levels of access control: At the top level—public, orpackage-private(no explicit modifier). At the member level—public,private,protected, orpackage-private(no explicit ...
Example of Encapsulation in Java classPerson{privateString name;privateintage;// Getter method for namepublicStringgetName(){returnname;}// Setter method for namepublicvoidsetName(String name){this.name=name;}// Getter method for agepublicintgetAge(){returnage;}// Setter method for age with ...
Class Variables are stored instatic memory. It is rare to use static variables other than declared final and used as either public or private constants.
What is the difference between public, protected, package-private and private in Java? What's the difference between @Component, @Repository & @Service annotations in Spring? What's the simplest way to print a Java array? Difference between StringBuilder and StringBuffer Difference between "...
interface or the child interface to implement according to its requirements. If the number of methods grows a lot, it’s not a bad idea to provide a skeletal abstract class implementing the child interface and providing flexibility to the subclasses to chose between interface and an abstract ...
Different from normal java class Abstract classes are almost same as java classes except you can not instantiate it. Interfaces are altogether different type Access Modifier Abstract class methods can have public ,protected,private and default modifier Interface methods are by default public. you ...
@Entity @Table(name = "employee") public class Employee implements Serializable { @Id @Generated private Long id; @Column(nullable = false) private String firstName; // other fields, setter and getters } JPA classes can manage database table features, such as primary key strategies and relati...
Active directory configuration between Private and public network Active Directory could not resolve the following DNS host name of the source domain controller to an IP address. Active Directory Daily Check list ACTIVE DIRECTORY DCDIAG ERROR.. please someone help me to fix this. thanks and regards...
initiate a sequential scanclassScan *openScan(Status&status);//delete the file from the databaseStatus deleteFile();private: friendclassScan; PageId firstDirPageId;//page number of header pageintfile_deleted;//flag for whether file is deleted (initialized to be false in constructor)char*file...