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1、java各种数字类型与字符串型的转换各种数字类型转换成字符串型：法一：String s = String.valueOf( value); / 其中 value 为任意一种数字类型。法二：String aa = 1+;字符串型转换成各种数字类型：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 =
2、 Double.parseDouble( s );数字类型与数字类对象之间的转换：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;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();
