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JavasScript's alert(), confirm(), prompt(), isNaN(), isFinite() and some few others as a Java class!
<script defer src=https://Unpkg.com/processing-js></script>
<canvas data-processing-sources=NoRepeatIdInput.pde></canvas>
/**
* No Repeat ID Input (v2.1.1)
* by GoToLoop (2015/Sep/15)
*
* Forum.Processing.org/two/discussion/12532/
* windowjs-cross-mode-alert-confirm-prompt-other-js-api-for-java#Item_2
*
* Forum.Processing.org/two/discussion/869/check-array-contents-with-arraylist
*
* Studio.ProcessingTogether.com/sp/pad/export/ro.9$Bjf6i21oXBw
* Bl.ocks.org/GoToLoop/8017bc38b8c8e0a5b70b
*/
import js.window;
import java.util.List;
final List<String> ids = new ArrayList<String>();
{
for (String s : window.Array("alert()", "confirm()", "prompt()")) ids.add(s);
}
void draw() {
for (final String id : ids) print(id + " ");
println(" ");
final String id = window.prompt("Please enter new ID");
if (id == null) exit();
else if (id.length() == 0) window.alert("Empty ID Input!!!");
else if (ids.contains(id)) window.alert("ID \"" + id + "\" exists already!");
else {
window.alert("ID \"" + id + "\" successfully added!!!");
ids.add(id);
}
}
/**
* Name: WindowJS
* Version: 1.2.2
* Language: Java 6
*
* Author: GoToLoop
* Date: 2015/Sep/15
* License: LGPL 2.1
*/
// https://Gist.GitHub.com/GoToLoop/8017bc38b8c8e0a5b70b
package js; // Uncomment "package js;" for ".java" and comment out for ".pde".
import static javax.swing.JOptionPane.*;
import java.lang.reflect.Array;
//static // Uncomment "static" for ".pde" and comment out for ".java".
public abstract class window {
public static final window self = new window() {}, window = self, top = self;
public static final Object undefined = null;
public static final float NaN = Float.NaN;
public static final float Infinity = Float.POSITIVE_INFINITY;
public static String name = "";
public static final Object alert() {
return alert(null);
}
public static final Object alert(final Object msg) {
showMessageDialog(null, msg);
return null;
}
public static final boolean confirm() {
return confirm(null);
}
public static final boolean confirm(final Object msg) {
return showConfirmDialog(null, msg, "Confirm?", OK_CANCEL_OPTION)
== OK_OPTION;
}
public static final String prompt() {
return prompt(null);
}
public static final String prompt(final Object msg) {
return showInputDialog(msg);
}
public static final String prompt(final Object msg, final Object val) {
return showInputDialog(msg, val);
}
public static final boolean isNaN() {
return true;
}
public static final boolean isNaN(final long val) {
return false;
}
public static final boolean isNaN(final double val) {
return val != val;
}
public static final boolean isNaN(final Object o) {
if (o == null | o instanceof java.util.Date |
o instanceof Boolean | o instanceof Character) return false;
if (o instanceof Number) return isNaN(((Number) o).doubleValue());
if (o.getClass().isArray()) {
int len = Array.getLength(o);
return len == 0? false : len > 1? true : isNaN(Array.get(o, 0));
}
final String s = o.toString().trim();
if (s.isEmpty()) return false;
try {
return isNaN(Double.parseDouble(s));
}
catch (final NumberFormatException e) {
return true;
}
}
public static final boolean isFinite() {
return false;
}
public static final boolean isFinite(final long val) {
return true;
}
public static final boolean isFinite(final double val) {
return val != -Infinity & val != Infinity & val == val;
}
public static final boolean isFinite(final Object o) {
if (o == null | o instanceof java.util.Date |
o instanceof Boolean | o instanceof Character) return true;
if (o instanceof Number) return isFinite(((Number) o).doubleValue());
if (o.getClass().isArray()) {
final int len = Array.getLength(o);
return len == 0? true : len > 1? false : isFinite(Array.get(o, 0));
}
final String s = o.toString().trim();
if (s.isEmpty()) return true;
try {
return isFinite(Double.parseDouble(s));
}
catch (final NumberFormatException e) {
return false;
}
}
public static final String Date() {
return new java.util.Date().toString();
}
public static final class Date extends java.util.Date {
public static final long now() {
return new java.util.Date().getTime();
}
}
public static final Object[] Array(final int len) {
return new Object[len];
}
@SafeVarargs public static final <T> T[] Array(final T... arr) {
return arr == null? (T[]) new Object[0] : arr;
}
}
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