CORE API / CATATAN</>↗Core API23 Jan 2008
package org.kodejava.lang; public class CheckForInterface { public static void main(String[] args) { // Checking whether Cloneable is an interface or class Class<?> clazz = Cloneable.class; boolean isInterface = clazz.isInterface(); System.out.println(clazz.getName() + " is an interface = " + isInterface); // Checking whether String is an interface or class clazz = String.class; isInterface = clazz.isInterface(); System.out.println(clazz.getName() […]
CORE API / CATATAN</>↗Core API20 Jan 2008
The getClass().getInterfaces() method return an array of Class that represents the interfaces implemented by an object. package org.kodejava.lang; import java.util.Date; import java.util.Calendar; public class ClassInterfaces { public static void main(String[] args) { // Get an instance of Date class Date date = Calendar.getInstance().getTime(); // Get all interfaces implemented by the java.util.Date class and // print […]
CORE API / CATATAN</>↗Core API19 Jan 2008
To get the package name of a class we can use the getClass().getPackage() method of the inspected object. package org.kodejava.lang; import java.util.Date; public class GetPackageName { public static void main(String[] args) { // Create an instance of Date class, and then obtain the class package // name. Date date = new Date(); Package pack = […]
CORE API / CATATAN</>↗Core API18 Jan 2008
To get the super class of an object we can call the object’s getClass() method. After getting the class type of the object we call the getSuperclass() method to get the superclass. Let’s see the code snippet below. package org.kodejava.lang; public class ObtainingSuperClass { public static void main(String[] args) { // Create an instance of […]
REGEX / CATATAN</>↗Regex15 Jan 2008
This code snippet uses the java.util.regex.Pattern.split() method to split-up input string separated by commas or whitespaces (spaces, tabs, new lines, carriage returns, form feeds). package org.kodejava.regex; import java.util.regex.Pattern; public class RegexSplitExample { public static void main(String[] args) { // Pattern for finding commas, whitespaces (spaces, tabs, new lines, // carriage returns, form feeds). String pattern […]
JDBC / CATATAN</>↗JDBC10 Jan 2008
package org.kodejava.jdbc; import java.sql.*; public class StoredProcedureListExample { private static final String URL = "jdbc:mysql://localhost/kodejava"; private static final String USERNAME = "kodejava"; private static final String PASSWORD = "s3cr*t"; public static void main(String[] args) { try (Connection conn = DriverManager.getConnection(URL, USERNAME, PASSWORD)) { DatabaseMetaData metadata = conn.getMetaData(); ResultSet result = metadata.getProcedures("kodejava", "...
