Convert primitive back and forth : Data Type Conversion « Data Type « Java Tutorial

1. Java Tutorial
2. Data Type
3. Data Type Conversion

public final class PrimitiveUtils {

    
    public static Class getClass(String value) {
        Class clz = null;        
        if ("int".equals(value)) {
            clz = int.class;
        }
        if ("byte".equals(value)) {
            clz = byte.class;
        }
        if ("short".equals(value)) {
            clz = short.class;
        }
        if ("long".equals(value)) {
            clz = long.class;
        }
        if ("float".equals(value)) {
            clz = float.class;
        }
        if ("double".equals(value)) {
            clz = double.class;
        }
        if ("boolean".equals(value)) {
            clz = boolean.class;
        }
        if ("char".equals(value)) {
            clz = char.class;
        }
        return clz;
    }

    public static Object read(String value, Class type) {
        Object ret = value;
        if (Integer.TYPE.equals(type)) {
            ret = Integer.valueOf(value);
        }
        if (Byte.TYPE.equals(type)) {
            ret = Byte.valueOf(value);
        }
        if (Short.TYPE.equals(type)) {
            ret = Short.valueOf(value);
        }
        if (Long.TYPE.equals(type)) {
            ret = Long.valueOf(value);
        }
        if (Float.TYPE.equals(type)) {
            ret = Float.valueOf(value);
        }
        if (Double.TYPE.equals(type)) {
            ret = Double.valueOf(value);
        }
        if (Boolean.TYPE.equals(type)) {
            ret = Boolean.valueOf(value);
        }
        if (Character.TYPE.equals(type)) {
            ret = value.charAt(0);
        }
        // TODO others.
        return ret;
    }
}