Samsung 450R4J-X06
Reference Price: 3599 RMBRecommended reason: Exquisite and colorful fuselage, sufficient performance
Samsung notebooks have always been satisfactory in terms of design, giving priority to female users. Samsung 450R4J-X06 Notebook has exquisite fuselage design, the fuselage weight 1.9kg, has the good portability. In addition, the notebook also has a lunar black, mysterious silver, ivory white and pomegranate red light a variety of vibrant colors to choose from, sui
, these five packaging classes create cache data of the corresponding type of value [-128,127], but new objects will still be created beyond this range. The packaging classes Float and Double of the two floating point number types do not implement the constant pool technology.1) Integer and constant pool
Integer i1 = 40;Integer i2 = 40;Integer i3 = 0;Integer i4 = new Integer(40);Integer i5 = new Integer(40);Integer i6 = new Integer(0);System.out.print
scenario
(1 ). integeri1 = 40; Because Integer is the packaging class of the basic data type int, it is an object, so Java will execute the automatic packing operation during compilation to directly encapsulate the code into Integeri1 = Integer. valueOf (40) to use objects in the constant pool
(2). Integeri1 = newInteger (40); in this case, a new object is created.
Integer i1 = 40;Integer i2 = new Integer(40); System.out.println(i1 == i2);//false
In this case, new Integer does not automatically
refresh the BIOS. My current computer system is windows, and I used VirtualBox to download a Ubuntu...
Micro star CX420-54302G50SX (core i5 430 M/2G/500G) notebookLatest price: $6649
Processor brand: Intel
Standard memory capacity (MB): 2048
The Apriori algorithm described earlier has many drawbacks, such as a large number of full-table scans and large computational natural connections, and is now almost no longer usedThe PFP algorithm is used in the Mahout algorithm library, which is the distributed operation mode of Fpgrowth algorithm, and its internal algorithm structure and FPGROWTH algorithm difference are not very largeSo here's the first introduction to the FPGROWTH algorithm that runs in stand-alone memoryOr use the Apriori
when they are greater than or equal to 128 and less than or equal to 127.Java wrapper class constant pool detailedpublic class Integertest {public static void Main (string[] args) {Objpooltest ();}public static void Objpooltest () {Integer I1 = 40;Integer i2 = 40;Integer i3 = 0;Integer i4 = new Integer (40);Integer i5 = new Integer (40);Integer I6 = new Integer (0);Integer i7 = 140;Integer i8 = 140;System.out.println ("i1=i2\t" + (I1 = = i2));System.
Original: http://www.jb51.net/article/111847.htmWhat is auto-boxing and unpackingAutomatic boxing is that Java automatically converts the original type values into corresponding objects, such as converting an int variable to an integer object, a process called boxing, which translates an integer object into an int type value, which is called unpacking. Because the boxes and unboxing here are automatically non-human for conversion, it is called as automatic packing and unpacking. Primitive type B
current positioning of the middle level.
GTX 1050Ti video Card
In addition, the GTX 1050Ti graphics card market after the listing of 1299 yuan or 1499 yuan, and for gamers, if the balance, the graphics card budget is a bit higher than the CPU, because for the game configuration, more is considered graphics performance, At the same time the game to the graphics card performance requirements than the CPU high.
Gtx1050ti Ladder positioning diagra
I just upgraded my notebook X201 TO THE FINAL VERSION. The middle-key configuration for Thinkpad in Lucid10.04 cannot be used on 10.10Maverick. After analysis, it is because in Ubuntu10.10, the "xorg. conf. d "folder, so the configuration in Lucid10.04 is invalid on 10.10. After studying it, I finally found the specific location and configured it as follows: Create" 20-t "in the following path
I just upgraded my notebook
Now X201 is used, and Ubuntu10.04 is installed. I changed the 9-core Battery two days ago. I want to see if there is no charge and the percentage of the charge cannot be seen. Later I found the following method, which is worth staying, slave :-) in ubuntu, all battery information is recorded in the file in the/proc/acpi/battery/BAT0/folder, as if the notebook was BAT0, because most of them only have one battery, this folder contains three alarminfosta
In microcomputer, also known as microprocessor, all the operation of computer is controlled by CPU, the performance index of CPU directly determines the performance index of microcomputer system, what is the difference between Intel Core i3 and I5CPU?
Intel Core i3 can be seen as a further lite version of the Core i5, and will have a version of the 32NM process version (developed with Code Clarkdale, based on Westmere architecture). The biggest featu
-generation processors with I5/i7 with K.
Intel quad-Generation Haswell processor (LGA1150 interface) with the motherboard introduction
G1840/g3260 is suitable for paired with H81 motherboards, simply a four-generation Celeron/Pentium Starter series processor for the H81 Starter 8 series motherboard.
Core i3 4160/i3 4170/i3 4370/i5 4440/i5 4590/
2000 yuan, while the general DIY balance installed, CPU budget, usually lower than the graphics card, because most mainstream games, the video card requirements higher than the CPU.
Therefore, we can draw a conclusion that: GTX 1060 is suitable to match the following 2000 yuan, positioning the high-end CPU, there are many options currently available, preferably recommended as follows:
Intel processor positioning resolution, i3 positioning midrange, i5
recommended the model equipped with gt750m independent graphics card to let it disdain other similar game, this machine at the beginning of the listing price is very high, and now finally tend to reason. In Jingdong and Tmall Mall can easily buy, i5 processor +gt750m Independent graphics card +1TB hard disk, there is no obvious weakness, it can be said that Y400 is 5000 yuan within the most interesting model.
ThinkPad X230s-20ah000ecd 8199 Yuan
stored in memory in different locations: The base type is stored in the stack, and the base type wrapper class is stored in the heap. The packaging classes mentioned above all implement the constant pool technique, and the other two types of floating-point type are not implemented. In addition, the string type implements the constant pool technique.Instance:[Java]View Plaincopy
Public class Test {
public static void Main (string[] args) {
Objpooltest ();
}
public static void Ob
different locations: The base type is stored in the stack, and the base type wrapper class is stored in the heap. The packaging classes mentioned above all implement the constant pool technique, and the other two types of floating-point type are not implemented. In addition, the string type implements the constant pool technique.Instance:[Java]View Plaincopyprint?
Public class Test {
public static void Main (string[] args) {
Objpooltest ();
}
public static void Objpooltest () {
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