try \ Language (API) \ Processing 1.0
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Reference for Processing version 1.2. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know.
If you prefer a more technical reference, visit the Processing Javadoc.
Name
try
Examples
BufferedReader reader;
String line;
void setup() {
// Open the file from the createWriter() example
reader = createReader("positions.txt");
}
void draw() {
try {
line = reader.readLine();
} catch (IOException e) {
e.printStackTrace();
line = null;
}
if (line == null) {
// Stop reading because of an error or file is empty
noLoop();
} else {
String[] pieces = split(line, TAB);
int x = int(pieces[0]);
int y = int(pieces[1]);
point(x, y);
}
}
Description
The try keyword is used with catch to handle exceptions. Sun's Java documentation defines an exception as "an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions." This could be, for example, an error while a file is read.
Syntax
try {
tryStatements
} catch (exception) {
catchStatements
}
Parameters
tryStatements
if this code throws and exception, the code in catch is run
exception
a Java exception
catchStatements
code that handles the exception
Usage
Web & Application
Updated on June 14, 2010 12:05:29pm EDT
Processing was initiated by Ben Fry and Casey Reas. It is developed by a small team of volunteers.
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