e114. getting the field objects of a class object.txt

这里面包含了一百多个JAVA源文件

There are three ways of obtaining a Field object from a Class object. 
    Class cls = java.awt.Point.class;
    
    // By obtaining a list of all declared fields.
    Field[] fields = cls.getDeclaredFields();
    
    // By obtaining a list of all public fields, both declared and inherited.
    fields = cls.getFields();
    for (int i=0; i<fields.length; i++) {
        Class type = fields[i].getType();
        process(fields[i]);
    }
    
    // By obtaining a particular Field object.
    // This example retrieves java.awt.Point.x.
    try {
        Field field = cls.getField("x");
        process(field);
    } catch (NoSuchFieldException e) {
    }