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+====== How to convert data type X into type Y in Java ======
+**The examples below show how to convert between different data types in Java. This is useful if you write your own plugins.**
+===== integer to String : =====
+  int i = 42; \\ String str = Integer.toString(i);
+or
+  String str = "" + i;
+===== double to String : =====
+   String str = Double.toString(d);
+or (in ImageJ only):
+   String str1 = IJ.d2s(d, n);  // n (0...9) digits to the right of the decimal point
+   String str2 = IJ.d2s(d);     // 2 digits to the right of the decimal point
+===== long to String : =====
+   String str = Long.toString(l);
+===== float to String : =====
+   String str = Float.toString(f);
+===== String to integer : =====
+   str = "25";\\  int i = Integer.valueOf(str).intValue();
+or
+   int i = Integer.parseInt(str);
+===== String to double : =====
+   double d = Double.valueOf(str).doubleValue();
+or (in ImageJ only):\\
+   double d = Tools.parseDouble(str, defaultValue);\\     // results in defaultValue if the string str results in no valid number
+===== String to long : =====
+   long l = Long.valueOf(str).longValue();
+or
+   long l = Long.parseLong(str);
+===== String to float : =====
+   float f = Float.valueOf(str).floatValue();
+===== decimal to binary : =====
+   int i = 42;\\  String binstr = Integer.toBinaryString(i);
+===== decimal to hexadecimal : =====
+   int i = 42;\\  String hexstr = Integer.toString(i, 16);
+or
+    String hexstr = Integer.toHexString(i);
+or (with leading zeroes and uppercase)
+<code java>
+   public class Hex {
+      public static void main(String args[]){
+          int i = 42;
+          System.out.print
+              (Integer.toHexString( 0x10000 | i).substring(1).toUpperCase());
+      }
+  }
+</code>
+===== Color to hexadecimal =====
+(ImageJ only)
+   String str = Tools.c2hex(myColor);  // results in "#rrggbb", e.g., "#FF0000" for red
+===== hexadecimal (String) to integer : =====
+   int i = Integer.valueOf("B8DA3", 16).intValue();
+or
+   int i = Integer.parseInt("B8DA3", 16);
+===== ASCII code to String: =====
+   int i = 64;\\  String aChar = new Character((char)i).toString();
+===== integer to ASCII code (byte): =====
+   char c = 'A';\\  int i = (int) c; // i will have the value 65 decimal
+===== To extract ASCII codes from a String: =====
+<code java>
+  String test = "ABCD";
+  for ( int i = 0; i < test.length(); ++i ) {
+      char c = test.charAt( i );
+      int i = (int) c;
+      System.out.println(i);
+ }
+</code>
+===== integer to boolean: =====
+   b = (i != 0);
+===== boolean to integer: =====
+   i = (b)?1:0;
+===== float to double =====
+   float f = (float)d;
+For arrays (in ImageJ only):\\
+   float[] fArray = Tools.toFloat(dArray);
+===== double to float =====
+   double d = f;  //no explicit typecast needed
+For arrays (in ImageJ only):\\
+   double[] dArray = Tools.toDouble(fArray);
+===== To catch illegal number conversions: =====
+Try using the try/catch mechanism:
+<code java>
+  try{
+      i = Integer.parseInt(aString);
+     }
+  catch(NumberFormatException e) {
+  }
+</code>

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