JAVA常用数据类型转换

这是一个例子,说的是JAVA中数据数型的转换.供大家学习引

package cn.com.lwkj.erts.register;
import java.sql.Date;
public class TypeChange {
public TypeChange() {
}
//change the string type to the int type
public static int stringToInt(String intstr)
{
    Integer integer;
    integer = Integer.valueOf(intstr);
    return integer.intValue();
}
//change int type to the string type
public static String intToString(int value)
{
    Integer integer = new Integer(value);
    return integer.toString();
}
//change the string type to the float type
public static float stringToFloat(String floatstr)
{
    Float floatee;
    floatee = Float.valueOf(floatstr);
    return floatee.floatValue();
}
//change the float type to the string type
public static String floatToString(float value)
{
    Float floatee = new Float(value);
    return floatee.toString();
}
//change the string type to the sqlDate type
public static java.sql.Date stringToDate(String dateStr)
{
    return java.sql.Date.valueOf(dateStr);
}
//change the sqlDate type to the string type
public static String dateToString(java.sql.Date datee)
{
    return datee.toString();
}

public static void main(String[] args)
{
    java.sql.Date day ;
    day = TypeChange.stringToDate("2003-11-3");
    String strday = TypeChange.dateToString(day);
    System.out.println(strday);
}

}