Separate HTML for Basic Foil 15 java.lang.Object Wrappers

Basic HTML version of Foils prepared 18 May 97

Foil 15 java.lang.Object Wrappers

From Java Tutorial - Spring 1997 Part 4: Multithreading, useful Java classes, I/O, Networking, and the future Peking Tutorial, Web Certificate -- Spring-Summer 1997. by Nancy J. McCracken,Geoffrey C. Fox

"types" such as int char float etc. are NOT classes

Thus one cannot use methods such as

int var;

var.toString

Thus ALL types have associated wrappers used like

Character wrappedchar = new Character(char);

now wrappedchar has lots of good methods you can use such as:

wrappedchar.equals(anotherobject);

wrappedchar.toString();

There are also static (class) functions such as:

toUppercase(char ch);

isUpperCase(char ch);

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