常见Java 中数据类型之间的转换的方法！

<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> 1. shortint exp: short shortvar=0; int intvar=0; shortvar= (short) intvar 2. intshort exp: short shortvar=0; int intvar=0; intvar=shortvar; 3. int->String exp: int intvar=1; String stringvar; Stringvar=string.valueOf (intvar); 4. float->String exp: float floatvar=9.99f; String stringvar; Stringvar=String.valueOf (floatvar); 5. double->String exp double doublevar=99999999.99; String stringvar; Stringvar=String.valueOf (doublevar); 6. char->String exp char charvar=’a’; String stringvar; Stringvar=String.valueOf (charvar); 7 String->int、float、long、double Exp String intstring=”10”; String floatstring=”10.1f”; String longstring=”99999999”; String doubleString=”99999999.9”; Int I=Integer.parseInt (intstring); Float f= Integer.parseInt (floatstring); Long lo=long. parseInt (longstring); Double d=double. parseInt (doublestring); 8 String->byte、short Exp String s=”0”; Byte b=Integer.intValue(s); Short sh=Integer.intValue(s); 9 String->char Exp String s=”abc”; Char a=s.charAt(0); 返回字符a 10 Stringboolean String s=”true”; Boolean flag=Boolean.valueOf (“s”);