e410. getting the maximum size of a preference key and value.txt

这里面包含了一百多个JAVA源文件

 // Get maximum key length
    int keyMax = Preferences.MAX_KEY_LENGTH;
    
    // Get maximum value length
    int valueMax = Preferences.MAX_VALUE_LENGTH;
    
    // Get maximum length of byte array values
    int bytesMax = Preferences.MAX_VALUE_LENGTH * 3/4 ;