Added random num generator in java

.github/workflows/c-cpp.yml

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+name: C/C++ CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make
+    - name: make check
+      run: make check
+    - name: make distcheck
+      run: make distcheck

Arduino_Code/Arduino-IRremote/Contributing.md

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+# Contribution Guidlines
+
+This library is the culmination of the expertise of many members of the open source community who have dedicated their time and hard work. The best way to ask for help or propose a new idea is to [create a new issue](https://github.com/z3t0/Arduino-IRremote/issues/new) while creating a Pull Request with your code changes allows you to share your own innovations with the rest of the community.
+
+The following are some guidelines to observe when creating issues or PRs:
+- Be friendly; it is important that we can all enjoy a safe space as we are all working on the same project and it is okay for people to have different ideas
+- [Use code blocks](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet#code); it helps us help you when we can read your code! On that note also refrain from pasting more than 30 lines of code in a post, instead [create a gist](https://gist.github.com/) if you need to share large snippets
+- Use reasonable titles; refrain from using overly long or capitalized titles as they are usually annoying and do little to encourage others to help :smile:
+- Be detailed; refrain from mentioning code problems without sharing your source code and always give information regarding your board and version of the library 
+
+If there is any need to contact me then you can find my email on the README, I do not mind responding to emails but it would be in your own interests to create issues if you need help with the library as responses would be from a larger community with greater knowledge!

Arduino_Code/Arduino-IRremote/Contributors.md

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+## Contributors
+These are the active contributors of this project that you may contact if there is anything you need help with or if you have suggestions.
+
+- [z3t0](https://github.com/z3t0) : Active Contributor and currently also the main contributor.
+  * Email: [email protected]
+- [shirriff](https://github.com/shirriff) : An amazing person who worked to create this awesome library and provide unending support
+- [AnalysIR](https:/github.com/AnalysIR): Active contributor and is amazing with providing support!
+- [Informatic](https://github.com/Informatic) : Active contributor
+- [fmeschia](https://github.com/fmeschia) : Active contributor
+- [PaulStoffregen](https://github.com/paulstroffregen) : Active contributor
+- [crash7](https://github.com/crash7) : Active contributor
+- [Neco777](https://github.com/neco777) : Active contributor
+- [Lauszus](https://github.com/lauszus) : Active contributor
+- [csBlueChip](https://github.com/csbluechip) : Active contributor, who contributed major and vital changes to the code base.
+- [Sebazzz](https://github.com/sebazz): Contributor
+- [lumbric](https://github.com/lumbric): Contributor
+- [ElectricRCAircraftGuy](https://github.com/electricrcaircraftguy): Active Contributor
+- [philipphenkel](https://github.com/philipphenkel): Active Contributor
+- [MCUdude](https://github.com/MCUdude): Contributor
+- [marcmerlin](https://github.com/marcmerlin): Contributor (ESP32 port)
+
+Note: This list is being updated constantly so please let [z3t0](https://github.com/z3t0) know if you have been missed.

Arduino_Code/Arduino-IRremote/IRremote.cpp

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+//******************************************************************************
+// IRremote
+// Version 2.0.1 June, 2015
+// Copyright 2009 Ken Shirriff
+// For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
+//
+// Modified by Paul Stoffregen <[email protected]> to support other boards and timers
+// Modified  by Mitra Ardron <[email protected]>
+// Added Sanyo and Mitsubishi controllers
+// Modified Sony to spot the repeat codes that some Sony's send
+//
+// Interrupt code based on NECIRrcv by Joe Knapp
+// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
+// Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
+//
+// JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+// LG added by Darryl Smith (based on the JVC protocol)
+// Whynter A/C ARC-110WD added by Francesco Meschia
+//******************************************************************************
+
+// Defining IR_GLOBAL here allows us to declare the instantiation of global variables
+#define IR_GLOBAL
+#	include "IRremote.h"
+#	include "IRremoteInt.h"
+#undef IR_GLOBAL
+
+#ifndef IR_TIMER_USE_ESP32
+#include <avr/interrupt.h>
+#endif
+
+
+//+=============================================================================
+// The match functions were (apparently) originally MACROs to improve code speed
+//   (although this would have bloated the code) hence the names being CAPS
+// A later release implemented debug output and so they needed to be converted
+//   to functions.
+// I tried to implement a dual-compile mode (DEBUG/non-DEBUG) but for some
+//   reason, no matter what I did I could not get them to function as macros again.
+// I have found a *lot* of bugs in the Arduino compiler over the last few weeks,
+//   and I am currently assuming that one of these bugs is my problem.
+// I may revisit this code at a later date and look at the assembler produced
+//   in a hope of finding out what is going on, but for now they will remain as
+//   functions even in non-DEBUG mode
+//
+int  MATCH (int measured,  int desired)
+{
+ 	DBG_PRINT(F("Testing: "));
+ 	DBG_PRINT(TICKS_LOW(desired), DEC);
+ 	DBG_PRINT(F(" <= "));
+ 	DBG_PRINT(measured, DEC);
+ 	DBG_PRINT(F(" <= "));
+ 	DBG_PRINT(TICKS_HIGH(desired), DEC);
+
+  bool passed = ((measured >= TICKS_LOW(desired)) && (measured <= TICKS_HIGH(desired)));
+  if (passed)
+    DBG_PRINTLN(F("?; passed"));
+  else
+    DBG_PRINTLN(F("?; FAILED")); 
+ 	return passed;
+}
+
+//+========================================================
+// Due to sensor lag, when received, Marks tend to be 100us too long
+//
+int  MATCH_MARK (int measured_ticks,  int desired_us)
+{
+	DBG_PRINT(F("Testing mark (actual vs desired): "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F("us vs "));
+	DBG_PRINT(desired_us, DEC);
+	DBG_PRINT("us"); 
+	DBG_PRINT(": ");
+	DBG_PRINT(TICKS_LOW(desired_us + MARK_EXCESS) * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(TICKS_HIGH(desired_us + MARK_EXCESS) * USECPERTICK, DEC);
+
+  bool passed = ((measured_ticks >= TICKS_LOW (desired_us + MARK_EXCESS))
+                && (measured_ticks <= TICKS_HIGH(desired_us + MARK_EXCESS)));
+  if (passed)
+    DBG_PRINTLN(F("?; passed"));
+  else
+    DBG_PRINTLN(F("?; FAILED")); 
+ 	return passed;
+}
+
+//+========================================================
+// Due to sensor lag, when received, Spaces tend to be 100us too short
+//
+int  MATCH_SPACE (int measured_ticks,  int desired_us)
+{
+	DBG_PRINT(F("Testing space (actual vs desired): "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F("us vs "));
+	DBG_PRINT(desired_us, DEC);
+	DBG_PRINT("us"); 
+	DBG_PRINT(": ");
+	DBG_PRINT(TICKS_LOW(desired_us - MARK_EXCESS) * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(TICKS_HIGH(desired_us - MARK_EXCESS) * USECPERTICK, DEC);
+
+  bool passed = ((measured_ticks >= TICKS_LOW (desired_us - MARK_EXCESS))
+                && (measured_ticks <= TICKS_HIGH(desired_us - MARK_EXCESS)));
+  if (passed)
+    DBG_PRINTLN(F("?; passed"));
+  else
+    DBG_PRINTLN(F("?; FAILED")); 
+ 	return passed;
+}
+
+//+=============================================================================
+// Interrupt Service Routine - Fires every 50uS
+// TIMER2 interrupt code to collect raw data.
+// Widths of alternating SPACE, MARK are recorded in rawbuf.
+// Recorded in ticks of 50uS [microseconds, 0.000050 seconds]
+// 'rawlen' counts the number of entries recorded so far.
+// First entry is the SPACE between transmissions.
+// As soon as a the first [SPACE] entry gets long:
+//   Ready is set; State switches to IDLE; Timing of SPACE continues.
+// As soon as first MARK arrives:
+//   Gap width is recorded; Ready is cleared; New logging starts
+//
+#ifdef IR_TIMER_USE_ESP32
+void IRTimer()
+#else
+ISR (TIMER_INTR_NAME)
+#endif
+{
+	TIMER_RESET;
+
+	// Read if IR Receiver -> SPACE [xmt LED off] or a MARK [xmt LED on]
+	// digitalRead() is very slow. Optimisation is possible, but makes the code unportable
+	uint8_t  irdata = (uint8_t)digitalRead(irparams.recvpin);
+
+	irparams.timer++;  // One more 50uS tick
+	if (irparams.rawlen >= RAWBUF)  irparams.rcvstate = STATE_OVERFLOW ;  // Buffer overflow
+
+	switch(irparams.rcvstate) {
+		//......................................................................
+		case STATE_IDLE: // In the middle of a gap
+			if (irdata == MARK) {
+				if (irparams.timer < GAP_TICKS)  {  // Not big enough to be a gap.
+					irparams.timer = 0;
+
+				} else {
+					// Gap just ended; Record duration; Start recording transmission
+					irparams.overflow                  = false;
+					irparams.rawlen                    = 0;
+					irparams.rawbuf[irparams.rawlen++] = irparams.timer;
+					irparams.timer                     = 0;
+					irparams.rcvstate                  = STATE_MARK;
+				}
+			}
+			break;
+		//......................................................................
+		case STATE_MARK:  // Timing Mark
+			if (irdata == SPACE) {   // Mark ended; Record time
+				irparams.rawbuf[irparams.rawlen++] = irparams.timer;
+				irparams.timer                     = 0;
+				irparams.rcvstate                  = STATE_SPACE;
+			}
+			break;
+		//......................................................................
+		case STATE_SPACE:  // Timing Space
+			if (irdata == MARK) {  // Space just ended; Record time
+				irparams.rawbuf[irparams.rawlen++] = irparams.timer;
+				irparams.timer                     = 0;
+				irparams.rcvstate                  = STATE_MARK;
+
+			} else if (irparams.timer > GAP_TICKS) {  // Space
+					// A long Space, indicates gap between codes
+					// Flag the current code as ready for processing
+					// Switch to STOP
+					// Don't reset timer; keep counting Space width
+					irparams.rcvstate = STATE_STOP;
+			}
+			break;
+		//......................................................................
+		case STATE_STOP:  // Waiting; Measuring Gap
+		 	if (irdata == MARK)  irparams.timer = 0 ;  // Reset gap timer
+		 	break;
+		//......................................................................
+		case STATE_OVERFLOW:  // Flag up a read overflow; Stop the State Machine
+			irparams.overflow = true;
+			irparams.rcvstate = STATE_STOP;
+		 	break;
+	}
+
+	// If requested, flash LED while receiving IR data
+	if (irparams.blinkflag) {
+		if (irdata == MARK)
+			if (irparams.blinkpin) digitalWrite(irparams.blinkpin, HIGH); // Turn user defined pin LED on
+				else BLINKLED_ON() ;   // if no user defined LED pin, turn default LED pin for the hardware on
+		else if (irparams.blinkpin) digitalWrite(irparams.blinkpin, LOW); // Turn user defined pin LED on
+				else BLINKLED_OFF() ;   // if no user defined LED pin, turn default LED pin for the hardware on
+	}
+}