Java Cookbook, Second Edition

UDP client 

    TFTP 

UIManager class 

UML, books on 

UNC filenames 

unchecked exceptions 

unchecked raw types, warnings about 

Unicode 

    characters, converting to/from strings 

    converting to/from character set 

    International Components for Unicode for Java 

    online resources for 

    regular expression matching, Apache package 

    Unicode-aware case folding in regular expression pattern matching 

Unicode blocks 

Uniform Resource Identifier (URI) 

Uniform Resource Locator  [See URLs]

unit testing 

    EqualsDemo class (example) 

    JUnit tool 

Universal Resource Name (URN) 

Universal Serial Bus (USB) 

    standard for Java (in progress) 

Unix

    cal command 

    canonical filenames 

    compiling C code into loadable object 

    converting between Unicode characters and strings 

    DBM databases  2nd 

    dot command formatters (roff, nroff, troff, and groff) 

    environment variables 

    file command 

    filename separator 

    filesystem 

    find command 

    grep program, command-line options 

    Jikes compiler 

    kill signal, terminating VM 

    Korn shell script for managing CLASSPATH 

    line-oriented tools (sed and grep) 

    locale, setting 

    ls command 

    makefile 

    mbox protocol 

    Netscape, running with Java (ExecDemoNS example) 

    network applications, synchronous sockets 

    OpenBSD clone 

    prompt 

    regular expressions, information on 

    remote procedure calls, use of 

    root directory 

    standard streams, redirecting or piping 

    syslog 

    system property, predefining value 

    tee command  2nd 

    time (epoch seconds) 

    who program 

UNIX_LINES flag (Pattern.compile( )) 

UnknownHostException 

unlock( ) (Lock) 

unsigned int (C language), reading and converting to Java type 

UnsupportedOperationException 

UnZip class (example) 

updateComponentTree( ) (SwingUtilities class) 

updateRow( ) 

updating databases

    result sets, using 

    SQL, using  2nd 

uppercase  [See case]

URI (Uniform Resource Identifier) 

URL class, methods for reading contents 

URLs

    applet host, retrieving for 

    for CGI scripts 

    code, running from 

    content, reading 

    converting filenames to 

    dbURL (for database connections) 

    extracting from a file 

    extracting HTML tags from 

    mailto:, using for email 

    for sound files 

    URIs and URNs vs. 

URN (Universal Resource Name) 

USB (Universal Serial Bus) 

    standard for Java (in progress) 

UseLocales class (example) 

user, providing for mail settings 

user.language (system property) 

UserQuery class (example) 

UtilGUI class (example) 

utilities (collections, date), java.util package