e059. getting a class object.txt

这里面包含了一百多个JAVA源文件

There are three ways to retrieve a Class object. 
    // By way of an object
    Class cls = object.getClass();
    
    // By way of a string
    try {
        cls = Class.forName("java.lang.String");
    } catch (ClassNotFoundException e) {
    }
    
    // By way of .class
    cls = java.lang.String.class;