如何运用java来校验一段字符串是否为汉字
对于gb2312来讲, 首字节码位从0×81 至0×FE，尾字节码位分别是0×40 至0×FE
public boolean isGB2312( String str )
{
char[] chars = str.toCharArray();
boolean isGB2312 = false;
for ( int i = 0; i < chars.length; i++ )
{
byte[] bytes = ( "" + chars[i] ).getBytes();
if ( bytes.length == 2 )
{
int[] ints = new int[2];
ints[0] = bytes[0] & 0xff;
ints[1] = bytes[1] & 0xff;
if ( ints[0] >= 0x81 && ints[0] <= 0xFE && ints[1] >= 0x40 && ints[1] <= 0xFE )
{
isGB2312 = true;
break;
}
}
}
return isGB2312;
}