What is Java Native Interface ?
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JavaTM Native Interface (JNI) is a standard programming interface for writing Java native methods and embedding the JavaTM virtual machine* into native applications. The primary goal is binary compatibility of native method libraries across all Java virtual machine implementations on a given platform. \nThe Java 2 SDK supports the old native method interface (NMI) only when using the classic virtual machine. NMI was originally implemented in Java Development Kit (JDKTM) 1.0. The old NMI is not part of the Java platform standard, and programmers are strongly encouraged to migrate their existing NMI code to the JNI.
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1)  in MSIE, in the Tools Menu, under Internete Options, go the Advanced Options tab; there, under Java, make sure it's enabled, as well as under Microsoft VM (if present).\n2) If Java is not present, goto to www.sun.com adn look for Java; then follow instuctions to install in you computer
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A client-side applet.  Everything else (including standalone applications) can be written in PHP either using PHP-GTK, or using PHP compiler from Roadsend, or by extending .Net to support PHP.\n\nThere are, however, things that can be written in PHP, but not in Java, such as applications that do not require a Java virtual machine to run and applications compiled into native executable code...
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testng what language, hardware or tool?
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http://www.oracle.com/technology/documentation/oracle9i.html
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Just go to the link below and download the latest Java SDK.\nHopefully, that would help you.
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Direct from the creators of the Java.The Java Programming Language is an indispensible resource for novice and advanced programmers alike. \n\nDevelopers around the world have used previous editions to quickly gain deep understanding of the Java programming language, its design goals, and how to use it most effectively in real-world development. Now, Ken Arnold, James Gosling, and David Holmes have updated this classic to reflect the major enhancements in JavaTM 2 Standard Edition 5.0 (J2SETM 5.0). \n\nThe authors systematically conver most classes in Java's main packages, java.lang.*, java.util, and java.io, presenting in-depth explanations of why these classes work as they do, with informative examples. Several new chapters and major sections have been added, and every chapter has been updated to reflect today's best practices for building robust, efficient, and maintainable Java software. \n______________________________________\n      Key changes in this edition include \n       ----------------------------------------\nNew chapters on generics, enums, and annotations, the most powerful new language features introduced in J2SE 5.0 \nChanges to classes and methods throughout to reflect the addition of generics \nMajor new sections on assertions and regular expressions \nCoverage of all the new language features, from autoboxing and variable argument methods to the enhanced for-loop and covariant return types \nCoverage of key new classes, such as Formatter and Scanner \nThe JavaTM Programming Language, Fourth Edition, is the definitive tutorial introduction to the Java language and essential libraries and an indispensible reference for all programmers, including those with extensive experience. It brings together insights you can only get from the creators of Java: insights that will help you write software of exceptional quality. \n------------------------------------------------------------\nDirect from the creators of the JavaTM programming language, this Third Edition of The JavaTM Programming Language is a valuable resource for both novice and advanced programmers. More than 100,000 developers who programmed with C, C++, Smalltalk, or other high-level languages have used this book to get a concise, intelligent, and deep understanding of the Java programming language. \n\nThis book is what you need to understand the basic design goals of the language and the application of the language in real-world development. It provides unique insights into why and how the language was designed and intended to be used. \n\nThe authors describe the latest version of the language, as defined by The JavaTM Language Specification, Second Edition and implemented in version 1.3 of the Java 2 SDK, Standard Edition. This third edition has been structured to give more in-depth treatment of the newer language features as well as informative examples on using some of the new APIs. \n\n         New and/or revised in this edition: \n         ----------------------------------------\n- more details on language features, including an expanded section on nested classes\n- more comprehensive treatment of garbage collection and related programming issues\n- coverage of new APIs, such as collections and internationalization\n\nThoroughly revised from start to finish, this edition fully covers the features of the current release of the Java programming language and class libraries. The book serves as a tutorial introduction to the language and essential libraries as well as a reference. \n\nExperienced programmers will find this new edition to be a valuable reference and will gain new insights into the subtleties of the language. Novice and intermediate programmers will benefit from the valuable examples and clear explanations of language and library features. Make sure you understand the contents of this book before you begin any serious development for the Java platform. \n\nKen Arnold, a Staff Engineer at Sun Microsystems Laboratories, is a
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yes its a purely object oriented. Its because pretty much every variable youuse is and object. Even types like String and Integer. There are also many objects already written in java, that java provides, that you can use to create something or inheret it into your own classes and objects. \n\nThere are however some basic types like int (not Integer like above) and double, and boolean.  But majerity of the language is object oriented and almost every object is a subclass of another class. Thats why you end up having to do things like System.out.println. Meaning println is dependent on out, which intern dependent on System. So when writting something you end up having many dependecies and some lines can edn up being quite long.\n\nAnyways, yes, for majority - java is object oriented. Not completely since it still has basic types like int and double.
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Here:\nhttp://www.oldversion.com/program.php?n=java
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As far as I know, there is no way untill now,\nBut there is a Java system tray icon from which you can see Java console. I'm not sure but you may be able to see a list from there.
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here is a code to ge the available ResutSet types \n\nimport java.sql.Connection;\nimport java.sql.DatabaseMetaData;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class Main {\n  public static void main(String[] args) throws Exception {\n    Connection conn = getMySqlConnection();\n    System.out.println("Got Connection.");\n    Statement st = conn.createStatement();\n    st.executeUpdate("drop table survey;");\n    st.executeUpdate("create table survey (id int,name varchar(30));");\n    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");\n\n    DatabaseMetaData meta = conn.getMetaData();\n\n    if (meta.supportsResultSetType(ResultSet.TYPE_FORWARD_ONLY)) {\n      System.out.println("type name=TYPE_FORWARD_ONLY");\n    }\n    if (meta.supportsResultSetType(ResultSet.TYPE_SCROLL_INSENSITIVE)) {\n      System.out.println("type name=TYPE_SCROLL_INSENSITIVE");\n    }\n    if (meta.supportsResultSetType(ResultSet.TYPE_SCROLL_SENSITIVE)) {\n      System.out.println("type name=TYPE_SCROLL_SENSITIVE");\n    }\n\n\n    st.close();\n    conn.close();\n  }\n\n  private static Connection getHSQLConnection() throws Exception {\n    Class.forName("org.hsqldb.jdbcDriver");\n    System.out.println("Driver Loaded.");\n    String url = "jdbc:hsqldb:data/tutorial";\n    return DriverManager.getConnection(url, "sa", "");\n  }\n\n  public static Connection getMySqlConnection() throws Exception {\n    String driver = "org.gjt.mm.mysql.Driver";\n    String url = "jdbc:mysql://localhost/demo2s";\n    String username = "oost";\n    String password = "oost";\n\n    Class.forName(driver);\n    Connection conn = DriverManager.getConnection(url, username, password);\n    return conn;\n  }\n\n  public static Connection getOracleConnection() throws Exception {\n    String driver = "oracle.jdbc.driver.OracleDriver";\n    String url = "jdbc:oracle:thin:@localhost:1521:caspian";\n    String username = "mp";\n    String password = "mp2";\n\n    Class.forName(driver); // load Oracle driver\n    Connection conn = DriverManager.getConnection(url, username, password);\n    return conn;\n  }\n}
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You can try it via an IDE......... but in the end that also uses the Java Virtual Machine to launch it ... You can't escape it as it is a core component of running Java
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It means "application programming interface". We wouldn't use them instead webmasters would use them to put Googles' or Yahoos' maps on their web aites.
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Java is first and foremost a language, an object-oriented programming language to be specific. Java syntax is heavily based on C and C++ language syntax, but Java eliminates or streamlines many features that are considered unsafe or overly complicated.\n\nHowever, the Java specification, owned and managed by Sun Microsystems also defines three types of "platforms", program environments under which Java language programs can run:\n\n-- J2ME - Java 2 Micro Edition, for handheld devices, cell phones, etc.\n\n-- J2SE - Java 2 Standard Edition, for desktop computer applications, web browser applets, and POJO (Plain ol' Java Object) network applications\n\n-- J2EE - Java 2 Enterprise Edition, for implementing large-scale distributed apps, business-to-business apps, network/web apps and other heavy-duty stuff\n\nThe platform specifications themselves are not programs, but in practice Sun and others write programs to implement the platforms. Each of the platforms includes the JVM (Java Virtual Machine) which acts as an "OS/Hardware neutral" layer between the Java program and the actual underlying computer OS and hardware. There are also platform-specific APIs (Application Programming Interfaces) that determine much of what is possible (or practical) to do on a given platform. In that sense these platform implementations are as much a part of the Java specification as the language itself.\n\nEven so, Java is first and foremost an object-oriented programming language.
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System.out is indeed an instance of java.io.PrintStream.  println() is a member function of java.io.PrintStream, but you're calling println() you're actually working with java.lang.System.out (which is a PrintStream, but Java already knows that, so you don't need to import PrintStream to show it).  \n\nPerhaps it would be helpful to you to understand what Java actually does with import statements.  They are *not* used to give the program access to different pieces of code.  It is tempting (especially for C/C++ programmers) to think that import statements are a mechanism for including other code files, but they are really more like C++ "using namespace" statements.  Java import statements have exactly one function: to save you typing.  You can take any program and remove all the import statements without breaking it, so long as you're willing to use the full names of all of your classes.\n\nJava's technique for deciding which files it needs to use is rather interesting.  Since all public classes are in files of the same name, Java can easily find any class by looking for a file named "name.java" (or name.class if compiled).  The dots between the package names are used to separate directories.\n\nOf course, if you wanted to pass something System.out as an argument, you'd need to use java.io.PrintStream as the parameter type (or import java.io.PrintStream).
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I may not have written many programs in Java, but that sure as hell doesn't look like Java to me.\n\nEdit: It's actually C as you can see from the includes:\n#include<stdio.h>\n#include<conio.h>\n#include<math.h>\n#include<stdlib.h>\n\nC++ doesn't use <something.h> it just uses plain <something>.
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You may not have JAVA installed.