Pytanie  |
Odpowiedź |
What package contain most input out put tools? rozpocznij naukę
|
|
|
|
|
|
rozpocznij naukę
|
|
what is a stream? A stream can be defined as a sequence of data. there are two kinds of Streams. InPutStream: The InputStream is used to read data from a source. OutPutStream: the OutputStream is used for writing data to a destination.
|
|
|
what a re the 2 kinds of streams? rozpocznij naukę
|
|
Byte stream and Character stream.
|
|
|
|
rozpocznij naukę
|
|
Byte oriented I/O operations are needed to handle binary files that use 8-bit codes.
|
|
|
what is a character stream? rozpocznij naukę
|
|
Character oriented I/O operations are used to handle text files for which Java uses 16-bit UTF encoding (Unified Transformation Format).
|
|
|
give example of two byte stream classes rozpocznij naukę
|
|
Input Stream classes; Output Stream classes.
|
|
|
give example of two Character stream classes rozpocznij naukę
|
|
Reader classes; Writer classes.
|
|
|
_______convert a bite of input to a 16 bit character. rozpocznij naukę
|
|
Readers convert a bite of input to a 16 bit character.
|
|
|
_____convert a 16 bit character to a bite. rozpocznij naukę
|
|
Writers convert a 16 bit character to a bite.
|
|
|
what arte the 3 streams provided by the system class? rozpocznij naukę
|
|
System. in; system. out; system. err
|
|
|
There are 9 reader (______, ...) in the java. io package rozpocznij naukę
|
|
There are 9 reader (______, ...) in the java. io package
|
|
|
There are 8 reader (BufferedWriter, ...) in the java. io package rozpocznij naukę
|
|
There are 8 reader (BufferedWriter, ...) in the java. io package
|
|
|
What can the Scanner class do? rozpocznij naukę
|
|
a simple text scanner which can parse primitive types and strings
|
|
|
What package is scanner class found within? rozpocznij naukę
|
|
|
|
|
what does the scanner constructor look like? rozpocznij naukę
|
|
public Scanner(InputStream source) inputstream can be file or string etc
|
|
|
what does the scanner do? rozpocznij naukę
|
|
breaks its input into tokens using a delimiter pattern (whitespace). The resulting tokens may then be converted into values of different types using various next() methods.
|
|
|
what does String next() do? rozpocznij naukę
|
|
Finds and returns the next complete token from this scanner.
|
|
|
What does int nextInt() do? rozpocznij naukę
|
|
Scans the next token of the input as an int.
|
|
|
What does double nextDouble() do? rozpocznij naukę
|
|
Scans the next token of the input as a double.
|
|
|
what does skip(String pattern) do? rozpocznij naukę
|
|
Skips input that matches a pattern constructed from the specified string.
|
|
|
