Java record-77-enhanced for loop and Automatic Disassembly boxNew features in JDK5.0: Generic (Generics); Enhanced "for" loop (Enhanced For loop); Autoboxing/unboxing ); type safe enums, Static import, variable parameters, and enhanced for loop: the addition of the For-Each loop simplifies the traversal of the set. Its syntax is as follows: For (type element: array) {System. out. println (element);} when traversing a set or array, if you need to acces
Use javap disassembly To Help You Understand Java features (use javap to view class files in depth)
Author: builder.comUse javap to view class files in Depth
Java developers are familiar with using stringbuffer in a loop instead of concatenating string objects for optimal performance. However, most developers have never compared the differences between the two methods. In the Java Development Kit (JDK), a tool called javap can tell you why this can a
will be transferred to go to execute subroutine code, in order to be able to accurately return when the subroutine executes, need to push the address of the next instruction of the call instruction into the stack. Then create a new stack for the subroutine, the assembly instructions are as follows:
PUSHL%EBP
MOVL%esp,%EBP
The PUSHL%ebp instruction pushes the base address of the stack of the keynote program into the stack, and ESP,EBP all points to the next bit of the start of
the virtual table pointer. This is to prevent a virtual table from being taken to a non-self when a virtual function is called in a destructor . Why do you do this? To illustrate:Call A's constructor first:Class A fills the virtual table:To call a virtual function:After calling the constructor of a, continue to execute the remainder of B's constructor, in order to be able to invoke the Func2 of B normally, you must restore the virtual table :The same in the destructor.
Recognition of v
Keyboard disassembly and basic maintenance:1, flip the keyboard, the original jammed the bottom plate with gongs knife to the left and right direction percussion. Remove the keyboard casing, take out the entire keyboard, and unplug the key cap.2, with electric iron will be the key welding angle from the printed circuit board, so that the switch and printed circuit board away from the (Ferrochrome should be good grounding, to prevent the keyboard logic
application and use of heap space .Example:Size of new and new:The address returned:Call Constructor:First determine whether new is successful or skip the constructor if it fails:To execute a constructor initialization object:Navigate to the first member variable of the object and assign a value of 0XB:when the new object returns the first address of the object, it also checks whether it is null, makes a judgment, and skips the constructor if it fails, so you can start by finding the constructo
At the beginning of 2014, Cool faction launched the first 7-inch large screen Cross-border mobile phone great God, and equipped with eight nuclear processors, and the price is only 1888 yuan, caused a very large market response, small series for everyone to bring the "cool Great God Evaluation", from which we can see that the machine in the appearance, performance, cost-effective performance are very good. So what about the quality of the work of the great God of cool? The following author for y
1 Disassembly tool only need one, is the smallest screwdriver, of course, the most professional to use "clock up." If the tools are limited, this one will do the same. But the dust removal process will remove the fan, so also have to prepare the lubricating oil (fan-specific, I am looking for friends with the motor engine lubricants), GUI juice (because the fan is removed, Will remove the heatsink from the cpu/gpu/motherboard core piece)
2) up the
When there are only uimage and no vmlinux, you can view the disassembly in this way when you encounter problems.
1. Refer to compressed image from Uimage
Use the UE to open the Uimage file, find the 1f 8b location, such as, from 0X58D4 to gzip compressed file, use DD to intercept the previous content.
000058c0h:75 6E 6F 6D (20 65 72) 6F 6E; Uncompression ER000058d0h:72 6F 1F 8B (E4) FD; Ror..? ....... Playing000058e0h:09 D5 B5 0E EF D1 7D 7A; 楾 Lig
-573G on the hardware of the biggest highlight is the choice of the Five Dynasties core processor platform and Nvidia 940M unique combination, in the default 1366x768 pixel resolution without it to run the game, comprehensive performance is absolutely enough. Compared to the previous e5-572g, the new e5-573g is equipped with a I5-5200U processor (only one step, cannot be upgraded later) and changes the disassembly strategy: we just need to unscrew all
CPU heatsink is used to heat the CPU, the radiator on the stable operation of the CPU plays a decisive role, the Assembly of a computer when a good radiator is very important, how to disassemble and install the CPU heatsink?
Removal and installation of CPU Heatsink
Disassembly steps:
First step: First find the heatsink 4 corner of the buckle, the knob in the counterclockwise direction of rotation 90 degrees.
Step two: Lift the clip up. Once th
],eaxConst int*Constp4=i;//You cannot modify the value of I through *P4, nor can I reassign a value to P4. 00f813de Lea Eax,[i] 00F813E1 mov dword ptr [P4],eaxConst intp5=i;//The reference must be initialized, cannot be re-assigned, and the value of I cannot be modified here by P5. 00f813e4 Lea Eax,[i] 00f813e7 mov dword ptr [P5],eaxint*p= (int*) b;//A const object cannot be assigned to a non-const pointer,00f813ea Lea Eax,[b] 00f813ed mov dword ptr [P],eax//However, you can force type conversio
Failure phenomenon:
LT2252WD base how to disassemble?
Reason Analysis:
The base of the LT2252WD is as shown in the picture:
Similar to the base of the display disassembly, can refer to the document.
Solution:
1. Flip the monitor over, find the screws at the bottom of the base, loosen the screws (the screw can only be loosened and cannot be removed)
2. Remove the base, the display flat, observe the display structure, behi
Local objects
When the object's scope ends, the stack space is destroyed, at which time the destructor is called.Example:The destructor is called automatically when the function returns:
Heap Object
Call the destructor function to handle the destructor:Why use a destructor function to call a destructor ? Consider that if the object of the delete is an array of objects, you can use the destructor function to refactor all the objects in turn. Example:The construct agent function was call
Because the notebook parts are very small, in the disassembly of computer memory, some places also need to pay attention to, lest damage pen this, this tutorial is about the notebook to remove the memory to pay attention to several aspects.
1, notebook memory sockets have cover protection, the first step is to first remove the cover.
Most laptops have a logo on the cover, some are concave memory graphics, and from the size of the cover can be seen,
This article is translated to: http://qiita.com/shiracamus/items/61ffc618f204342e352f
In the CTF (Capture the Flag) it is often necessary to view the results of the objdump-d or-D disassembly x86/x64 binaries, so the relevant tags for VIM are defined here.Disassembled files are often named *.dis or *.dis-intel, which automatically correspond to the relevant vim definitions when they are opened.
Get a git repository.Https://github.com/shiracamus/vim-sy
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