java中几种常用的数据类型之间转换方法：

1. short-->int 转换

exp: short shortvar=0;

int intvar=0;

shortvar= (short) intvar

2. int-->short 转换

exp: short shortvar=0;

int intvar=0;

intvar=shortvar;

3. int->string 转换

exp: int intvar=1;

string stringvar;

stringvar=string.valueof (intvar);

4. float->string 转换

exp: float floatvar=9.99f;

string stringvar;

stringvar=string.valueof (floatvar);

5. double->string 转换

exp double doublevar=99999999.99;

string stringvar;

stringvar=string.valueof (doublevar);

6. char->string 转换

exp char charvar=’a’;

string stringvar;

stringvar=string.valueof (charvar);

7 string->int、float、long、double 转换

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 转换

exp string s=”0”;

byte b=integer.intvalue(s);

short sh=integer.intvalue(s);

9 string->char 转换

exp string s=”abc”;

char a=s.charat(0);

返回字符a

10 string-->boolean 转换

string s=”true”;

boolean flag=boolean.valueof (“s”);