J2ME in a Nutshell phần 3 pot

... 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; ... LAYOUT_CENTER. Because LAYOUT_DEFAULT has value 0, a layout value of LAYOUT_NEWLINE_BEFORE is equivalent to LAYOUT_NEWLINE_BEFORE | LAYOUT_DEFAULT. As a shorthand...

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 ... following methods: public void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle) J2ME in a Nutshell 185 data until it has enough to satisfy the applicati...

Ngày tải lên: 12/08/2014, 19:21

... 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

... Writer 32 5 32 5 32 5 32 7 32 7 32 8 32 9 33 0 33 1 33 2 33 3 33 4 33 4 33 5 33 6 33 7 33 8 33 9 33 9 33 9 12. j ava.lan g Package java.lang ArithmeticException ArrayIndexOutOfBoundsException ArrayStoreException ... Package Contents 30 8 30 8 30 9 31 0 11. java.io Package java.io ByteArrayInputStream ByteArrayOutputStream DataInput DataInputStre...

Ngày tải lên: 12/08/2014, 19:21

... 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 Java synchronization ... 904 JAR size mismatch 905 Attribute mismatch 906 Invalid descriptor J2ME in a Nutshell 54 Table 3- 2. MIDlet Packaging Attributes Attribute Name JAR JAD Value and Mean...

Ngày tải lên: 12/08/2014, 19:21

... creator ID is not being assigned, the type is given as Data. java -cp Converter.jar com.sun.midp.palm.database.MakeMIDPApp -jad Chapter3.jad -o Chapter3.prc -creator ORA3 -name "Ch 3& quot; ... the Output window, but their content can be saved in a file or J2ME in a Nutshell 30 3 constant An implementation-specific flag that indicates that a method has a trivial i...

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 35 3 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

... is assumed. A String can also be 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 ... Datagram newDatagram( int size) throws java.io.IOException; public abstract Datagram newDatagram(byte[] buf, int size) throws java.io.IOException; public abstract Datagram newDatagram...

Ngày tải lên: 12/08/2014, 19:21

... javax.microedition.io DataInput: java.io DataInputStream: java.io DataOutput: java.io DataOutputStream: java.io Date: java.util DATE: Calendar, DateField DATE_TIME: DateField DateField: ... rec1 and rec2 is converted to DataInputStreams like this: DataInputStream dis1 = new DataInputStream(new ByteArrayInputStream(rec1)); DataInputStream dis2 = new DataInput...

Ngày tải lên: 12/08/2014, 19:21

... J2ME in a Nutshell 498 Reader: java.io readFully(): DataInput, DataInputStream readInt(): DataInput, DataInputStream readLong(): DataInput, DataInputStream readShort(): DataInput, ... DataInput, DataInputStream readUnsignedByte(): DataInput, DataInputStream readUnsignedShort(): DataInput, DataInputStream readUTF(): DataInput, DataInputStream ready():...

Ngày tải lên: 12/08/2014, 19:21