Use Runtime.getRuntime().exec( myCommandString ) where myCommandString is something like "/full/pathname/command". An applet will need to be signed in order to allow this. If the pathname contains spaces, e.g. "c:\program files\windows\notepad", then enclose it in quotes within the quoted string. Or pre-tokenize them into elements of an array and call exec(String[] cmd) instead of exec(String cmd). From JDK1.3 there are two new overloaded Runtime.exec() methods. See similar questions...

above (18.8, 18.9), adjusted like this: BufferedReader pOut= new BufferedReader( new InputStreamReader(p.getInputStream())); try { String s = pOut.readLine(); while (s != null) { System.out.println(s); s = pOut.readLine(); } } catch (IOException e) { } Another possibility is to read chunks of whatever length as they come in: ... p = r.exec(cmd); InputStream is = p.getInputStream(); int len; byte buf[] = new byte[1000]; try { while( (len = is. See similar questions...

Unix and some other systems provide a popen() routine, which sets up a stdio stream on a pipe connected to the process running a command, so that the output can be read (or the input supplied). See similar questions...

The command command foo does just that. You don't need this with aliases, but you do with functions. Note that error messages like zsh: job table full or recursion limit exceeded are a good sign that you tried calling 'foo' in function 'foo' without using 'command'. If foo is a builtin rather than an external command, use builtin foo instead. See similar questions...

Package names are guaranteed uniqueness by using the Internet domain name in reverse order: com.javasoft.jag - the "com" or "edu" (etc.) part used to be in upper case, but now lower case is the recommendation. Class and interface names are descriptive nouns, with the first letter of each word capitalized: PolarCoords. Interfaces are often called "something-able", e.g. "Observable", "Runnable", "Sortable". See similar questions...

JDK 1.2 has System.setProperty( "property", "new value" ); Until then, you can get all the properties, and set just the one you want with code like this: System.getProperties().put("property", "new value" ); See similar questions...

For our MultiFlex and DCX Series of PCI-bus controllers (MultiFlex PCI 1440, MultiFlex PCI 1040, DCX-PCI300, DCX-PCI100, the command execution time is typically on the order of 50-100 microseconds per command. When using Pentiun III class computers or above, PMC's legacy ISA-bus controllers can achieve 1,000-1,500 commands and responses per second. For our PCI-bus controllers, the command rate is higher - typically in the range of 5,000-10,000 command-and-response cycles per second. See similar questions...

The exec VI function can be used to send shell commands. Include the shell call with the commands that are desired. For example under Windows operating systems the call is to command.com. For example, the string to copy filea to a drive would be See similar questions...

Ask the user to open a new shell. The best way to do this is system("echo Please open a new shell now."); sprintf(cmdstring, "echo Enter the command '%s' in it.", cmd); system(cmdstring); The traditional solution, pioneered by Microsoft, is to sell enough copies of your proprietary, slow, and limited software that everyone else supports your formats. See similar questions...

There are several ways. The most straightforward is: String myString = numString.trim(); int i = Integer.parseInt(myString); long l = Long.parseLong(myString) or String myString = numString.trim(); i = Integer.parseInt(myString,myIntRadix); Note 1: There is a gotcha with parseInt - it will throw a NumberFormatException for String values in the range "80000000" to "ffffffff". You might expect it to interpret them as negative, but it does not. The values have to be "-80000000" . See similar questions...

Try any of these: String s = String.valueOf(i); or String s = Integer.toString(i); or String s = Integer.toString(i, radix); or // briefer but may result in extra object allocation. String s = "" + i; Note: There are similar classes for Double, Float, Long, etc. See similar questions...

Use bytes, shorts, chars, ints or longs if you need to manipulate no more than 64 bits at once. Use ~ for NOT, & for AND, | for OR, and ^ for XOR. Beware that the precedence for & | and ^ is not intuitive; they have lower precedence than == and !=, so you must write: if ((a & 1) == 1) rather than: if (a & 1 == 1) You can also shift bits with the <<, >> and >>> operators; >> is a signed shift and >>> is an unsigned shift. See similar questions...

Look at the code below, submitted by expert programmer John Dumas. It uses serialization to write an object into a byte array, and reads it back to reconstitute a fresh copy. This is a clever hack! import java.io.ByteArrayOutputStream; import java.io.ByteArrayInputStream; import java.io.ObjectOutputStream; import java.io. See similar questions...

Of course as with any Java class, you could put a "main" method in your class that extends HttpServlet, so you could run it (the main(), not the doGet... See similar questions...

The best is to create a separate procedure to handle everything you need: chanset <#channel> need-op "need_op_cmd <#channel>" proc need_op_cmd { channel } { command1 command2 ... } To do this, you need to edit the first line of the config to make it point to the full path of where your eggdrop binary is. For example you have See similar questions...

Code like this seems to show that the calls don't work! String s = " hello "; s.trim(); s.toUpperCase(); Note again that Strings are immutable. This means that once a String has been initialized, its contents won't change. In the code above, the method calls return a different String with the desired alterations. But this new String is not assigned to anything, so the results are discarded. To see the changes, assign the results of the method call to the original String or to another String. See similar questions...

You can print the hex equivalent of an int with: int i = 0xf1; System.out.println("i is hex " + Integer.toHexString(i) ); See similar questions...

Simple answer: use a "callback". Make the parameter an interface and pass an argument instance that implements that interface. public interface CallShow { public void Show( ); } public class ShowOff implements CallShow { public void Show( ) { .... } public class ShowOff2 implements CallShow { public void Show( ) { .... } public class UseShow { CallShow savecallthis; UseShow( CallShow withthis ) { savecallthis = withthis; } void ReadyToShow( ) { savecallthis. See similar questions...

This solution works on Unix platforms using either JDK 1.0.2, or JDK 1.1. The trick is to use an array of Strings for the command line: String[] command = {"/bin/sh", "-c", "/bin/ls > out.dat"}; If you don't do this, and simply use a single string, the shell will see the -c and /bin/ls and ignore everything else after that. It only expects a single argument after the -c. import java.io.*; import java.util. See similar questions...

The reason is that many of the DOS commands are not individual programs, but merely "functions" of command.com. There is no DIR.EXE or COPY.EXE for example. Instead, one executes the command processor (shell) explicitly with a request to perform the built-in command, like so: Runtime.getRuntime().exec("command.com /c dir") for example. On NT, the command interpreter is "cmd.exe", so the statement would be Runtime.getRuntime(). See similar questions...