- integer to String : int i = 42;
- String str = Integer.toString(i);
- String str = "" + i
- double to String : String str = Double.toString(i);
- 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();
- int i = Integer.parseInt(str);
- String to double : double d = Double.valueOf(str).doubleValue();
- String to long : long l = Long.valueOf(str).longValue();
- 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);
- String hexstr = Integer.toHexString(i);
- hexadecimal (String) to integer :
- int i = Integer.valueOf（"B8DA3",16).intValue();
- 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;
- To extract Ascii codes from a Strin String test = "ABCD";
- for ( int i = 0; i < test.length(); ++i )
- {
- char c = test.charAt( i );
- int i = (int) c;
- System.out.println(i);
- }
- integer to boolean b = (i != 0);
- boolean to integer i = (b)?1:0;
- note :To catch illegal number conversion, try using the try/catch mechanism. try{
- i = Integer.parseInt(aString);
- }
- catch(NumberFormatException e)
- {
- }
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