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copied!<p>Example using the <a href="http://asm.ow2.org/" rel="nofollow noreferrer">ASM bytecode library</a> converted to work with .NET using the <a href="http://www.ikvm.net/userguide/ikvmc.html" rel="nofollow noreferrer">IKVM Java-to-.NET compiler</a>:</p> <p>hello.cs:</p> <pre><code>using System; using System.IO; using org.objectweb.asm; namespace test.helloWorld { public class helloDump { public static byte[] dump () { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; cw.visit(Opcodes.__Fields.V1_6, Opcodes.__Fields.ACC_PUBLIC + Opcodes.__Fields.ACC_SUPER, "hello", null, "java/lang/Object", null); mv = cw.visitMethod(Opcodes.__Fields.ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(Opcodes.__Fields.ALOAD, 0); mv.visitMethodInsn(Opcodes.__Fields.INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); mv.visitInsn(Opcodes.__Fields.RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); mv = cw.visitMethod(Opcodes.__Fields.ACC_PUBLIC + Opcodes.__Fields.ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); mv.visitCode(); mv.visitFieldInsn(Opcodes.__Fields.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); mv.visitLdcInsn("Hello World!"); mv.visitMethodInsn(Opcodes.__Fields.INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V"); mv.visitInsn(Opcodes.__Fields.RETURN); mv.visitMaxs(2, 1); mv.visitEnd(); cw.visitEnd(); return cw.toByteArray(); } public static void Main(string[] args) { FileStream helloWorldFile = new FileStream("hello.class", FileMode.Create); byte[] helloWorldClass = dump(); helloWorldFile.Seek(0, SeekOrigin.Begin); helloWorldFile.Write(helloWorldClass, 0, helloWorldClass.Length); } } } </code></pre> <p>commands:</p> <pre><code>$ ikvmc -out:org.objectweb.asm.dll -target:library -version:3.2.0.0 asm-3.2.jar $ mcs -r:org.objectweb.asm.dll hello.cs $ mono hello.exe $ ls hello.class $ java hello </code></pre>

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