Professor Kit Romano's Web Site

 



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Welcome
Definition of Program
Variable Types
Understanding Memory
Declaring Variables
Simple Commands
Concatenation and Strings
Sleep-Threads-Try Catch
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Java simplified
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Reading Data From File
Overview of Applets
Excellent Graphics Applet
Online Reference
Nested if statements
Arrays
Sorting Arrays
Using Strings
Functions
Top 20 Replies 
First program 211
Important Class Example
JAVA in SDK Environment
Understanding OOP
OOP simple example
Recursion example
Example of Inheritance
     and use of JTextArea



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Concatenation and Strings


tip on using strings

Concatenation of strings (growing)

String out = " ";


out = out + "help";


int p=0;
do{
      out = out + "2";
      p++;
      } while (p<10)


// after this out " help2222222222"