数字转成字符串
String s = String.valueOf(value); // 其中 value 为任意一种数字类型
字符串转数字
- String s = "169";
- byte b = Byte.parseByte( s );
- short t = Short.parseShort( s );
- int i = Integer.parseInt( s );
- long l = Long.parseLong( s );
- Float f = Float.parseFloat( s );
- Double d = Double.parseDouble( s );
数字与数字对象转
- byte b = 169;
- Byte bo = new Byte( b ); b = bo.byteValue();
- short t = 169;
- Short to = new Short( t ); t = to.shortValue();
- int i = 169;
- Integer io = new Integer( i ); i = io.intValue();
- long l = 169;
- Long lo = new Long( l ); l = lo.longValue();
- float f = 169f;
- Float fo = new Float( f ); f = fo.floatValue();
- double d = 169f;
- Double dObj = new Double( d ); d = dObj.doubleValue();
来源: http://www.bubuko.com/infodetail-2742806.html