gij

GIJ(1)                                GNU                               GIJ(1)



NAME
       gij - GNU interpreter for Java bytecode

SYNOPSIS
       gij [OPTION] ... JARFILE [ARGS...]

       gij [-jar] [OPTION] ... CLASS [ARGS...]
         [-Dname[=value]...]
         [-ms=number] [-mx=number]
         [--showversion] [--version] [--help]

DESCRIPTION
       "gij" is a Java bytecode interpreter included with "libgcj".  "gij" is
       not available on every platform; porting it requires a small amount of
       assembly programming which has not been done for all the targets sup-
       ported by gcj.

       The primary argument to "gij" is the name of a class or, with "-jar", a
       jar file.  Options before this argument are interpreted by "gij";
       remaining options are passed to the interpreted program.

       If a class name is specified and this class does not have a "main"
       method with the appropriate signature (a "static void" method with a
       "String[]" as its sole argument), then "gij" will print an error and
       exit.

       If a jar file is specified then "gij" will use information in it to
       determine which class' "main" method will be invoked.

       "gij" will invoke the "main" method with all the remaining command-line
       options.

       Note that "gij" is not limited to interpreting code.  Because "libgcj"
       includes a class loader which can dynamically load shared objects, it
       is possible to give "gij" the name of a class which has been compiled
       and put into a shared library on the class path.

OPTIONS
       -Dname[=value]
           This defines a system property named name with value value.  If
           value is not specified then it defaults to the empty string.  These
           system properties are initialized at the program's startup and can
           be retrieved at runtime using the "java.lang.System.getProperty"
           method.

       -ms=number
           This sets the initial heap size.

       -mx=number
           This sets the maximum heap size.

       -jar
           This indicates that the name passed to "gij" should be interpreted
           as the name of a jar file, not a class.

       --help
           Print help, then exit.

       --showversion
           Print version number and continue.

       --version
           Print version number, then exit.

SEE ALSO
       gcc(1), gcj(1), gcjh(1), jv-scan(1), jcf-dump(1), gfdl(7), and the Info
       entries for gcj and gcc.

COPYRIGHT
       Copyright (C) 2001, 2002 Free Software Foundation, Inc.

       Permission is granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version 1.1 or
       any later version published by the Free Software Foundation; with the
       Invariant Sections being ``GNU General Public License'', the Front-
       Cover texts being (a) (see below), and with the Back-Cover Texts being
       (b) (see below).  A copy of the license is included in the man page
       gfdl(7).



gcc-3.2.2                         2003-02-25                            GIJ(1)