J2ME in a Nutshell phần 5 pot

... packages are provided: java.io (but not LineNumberInputStream and StringBufferInputStream, which are deprecated in J2SE) java.lang java.lang.ref java.lang.reflect java.math java.net java.security ... java.security.acl java.security.cert java.security.interfaces java.security.spec java.text java.util java.util.jar java.util.zip J2ME in a Nutshell 221 Figure 6 -5. A...

Ngày tải lên: 12/08/2014, 19:21

... display) a Canvas from which the attribute values are obtained, as shown in Example 5- 1. Example 5- 1. Getting Display and Canvas Attributes for a Device package ora.ch5; import javax.microedition.lcdui.Canvas; ... without having to wait for the paint( ) method to be called. 5. 4.1 Lines and Rectangles The simplest shape you can draw on a Canvas is a straight line: publ...

Ngày tải lên: 12/08/2014, 19:21

... 6.3.1 Sending a Datagram To send a datagram, you have to obtain a Datagram object, populate it with the data to be sent, and invoke the send( ) method. The DatagramConnection interface has four ... following methods: public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle) J2ME in a Nutshell 1 85 data until it has enough to satisfy the appl...

Ngày tải lên: 12/08/2014, 19:21

... global Perl variables with the same names. By default, it ties all variables yielded by keys %ENV. A "suitable" environment has a name that begins with an alphabetic character and contains ... string values. In addition, \n, \t, and \r are used to represent non-space whitespace; "unsafe" characters are backslashed; and unprintable characters are output as quoted octa...

Ngày tải lên: 12/08/2014, 21:21

... application. You can also add interactions that open external content.  e interactive banner application includes links on each page that point to addi- tional external information, such as an article ... happen automatically when the application starts. For example, you may want a video or SWF movie to begin playing automatically. Or, you can de ne a default page state by creating an...

Ngày tải lên: 08/08/2014, 20:20

... O'Reilly at http://java.oreilly.com/. Books that are of particular interest to J2ME programmers include: Java in a Nutshell, by David Flanagan A Java language tutorial and complete API ... Package Contents 308 308 309 310 11. java.io Package java.io ByteArrayInputStream ByteArrayOutputStream DataInput DataInputStream DataOutput DataOutputStream EOFException...

Ngày tải lên: 12/08/2014, 19:21

... 904 JAR size mismatch 9 05 Attribute mismatch 906 Invalid descriptor J2ME in a Nutshell 54 Table 3-2. MIDlet Packaging Attributes Attribute Name JAR JAD Value and Meaning MIDlet-Name M ... therefore share the same instances of all Java classes and other resources loaded into the Java VM. Among other things, this means that data can be shared between MIDlets, and the usual J...

Ngày tải lên: 12/08/2014, 19:21

... implementations. Not all property accessors have a "default:" flag. A default value is determined by dynamically loading the class in question, instantiating it using a no- argument ... and return values. Inner classes Groups all of the inner classes and interfaces defined by the class or interface. For each inner class, there is a single-line synopsis. Each inner cla...

Ngày tải lên: 12/08/2014, 19:21

... } Subclasses ByteArrayInputStream, DataInputStream Passed To DataInputStream.DataInputStream(), InputStreamReader.InputStreamReader() Returned By Class.getResourceAsStream(), javax.microedition.io.Connector.openInputStream(), ... InputStreamReader. J2ME in a Nutshell 353 The static variables Integer.MIN_VALUE and Integer.MAX_VALUE are int (not Integer) values that rep...

Ngày tải lên: 12/08/2014, 19:21

... created by applying the static valueOf() methods to a boolean, a char, an array of characters (char[]), an int, a long or an arbitrary Java Object. With an Object, the String is created using the ... Datagram newDatagram( int size) throws java.io.IOException; public abstract Datagram newDatagram(byte[] buf, int size) throws java.io.IOException; public abstract Datagram newData...

Ngày tải lên: 12/08/2014, 19:21