I always wanted to learn Java because of curiosity and free. But because it is not used at work, and it is too high in hardware configuration, it is only occasionally used to learn. I have found tutorials and articles on the Internet, but I have not learned anything. I also bought more than 700 pages of Java j2se 5 edition reference book, because it is too thick to read. Finally, I bought a "Java programming practice
#!/bin/bash. Hellofunset"now going to thefuction Hello" hello# here will output the message:. /"back from thefunction Hello"6.6. function return Status valueExample 1:#!/bin/bashfunction Hello () { "Hello, today is ' date '" return 0 now going to thefunction Hellohello# next to output the return status value, with $? represents echo $? "back from thefunction Hello"Example 2: #!/bin/bashfunction Hello () {echo hello, today is ' date ' " return 0 }echo " now going to the functio
(Result,"%.3s%.3s%3d%.2d:%.2d:%.2d%d\n", Wday_name[timeptr-Tm_wday], mon_name[timeptr-Tm_mon], timeptr->tm_mday, timeptr->Tm_hour, Timeptr->tm_min, timeptr->Tm_sec,1900+ timeptr->tm_year); return result;}The doubt is lifted, and you can see that CTime returns a static local char array.System call Lseek Change Open file location:Handling Errors in system callsDetermine the type of error errno.Display error message Perror:The ls-a option lists hidden files:How to write LS:Stat gets file attribute
The title describes the sum of the diagonal elements of a 3x3 matrix. Input matrix output main diagonal sub-diagonal element and sample input1 2 31 1 13 2 1Sample output3 7Hint Source#includeint main(){int a[9];int x,y,i;for(i=0;iscanf("%d",a+i);x=a[0]+a[4]+a[8];y=a[2]+a[4]+a[6];printf("%d %d\n",x,y);} 1025:c Language Programming Tutorial (third Edition) after class exercise 7.3
The title describes a ball from the M-meter height of the free fall, each landing after the return of the original height of half, and then fall. How high does it bounce when it lands on nth time? How many meters are there? Leave two-bit decimal input m n output how high does it bounce when it lands on nth time? How many meters are there? Keep two decimal places separated by spaces and put in one line sample input1000 5Sample output31.25 2875.00Hint Source#includeint main(){int m,n,i;float h,l=0
Programming | Tutorial 2.5 event handler function
said the usual events, in terms of two different ways of dealing with events. The event-handling code described earlier is added like this: First, select the object that will capture the event (the movie clip instance or button), and then open the script panel and write the "on event name" code. For example, if we want a movie clip instance to capture the
The title description has a fractional sequence: 2/1 3/2 5/3 8/5 13/8 21/13 ... The sum of the first n items of this sequence is calculated, and two decimal places are reserved. Input n output series top N and sample input10Sample output16.481#include"stdio.h"2 3 intMainintargcChar Const*argv[])4 {5 6 intN, M =2, n =1, I;7 floats =0;8scanf"%d", N);9 for(i =0; i )Ten { One intT; As + = (float) m/N; -t =m; -m = n +m; then =T; - } - -printf"%.2f\n", s); + return 0;
The title describes the sum of the following three numbers, preserving the 1~b of the sum of the squares and 1~c of the 2-bit decimal 1~a and the input a B c output 1+2+...+a + 1^2+2^2+...+b^2 + 1/1+1/2+...+1/c Sample input100 50 10Sample output47977.931 intMainintargcChar Const*argv[])2 {3 4 intA, B, C, I;5 floatS1 =0, S2 =0, S3 =0;6 7scanf"%d%d%d", a, b, c);8 9 for(i =1; I )Ten { OneS1 + =i; A } - - for(i =1; I ) the { -S2 + = i *i; - } - + for(i =1
The title description enters two integers, asking them to divide the remainder. Use a macro with parameters to implement, program. Input a b two number output A/b remainder sample input3 2Sample output11#include 2 #defineDivide (A, b) res = a% B;3 intMainintargcChar Const*argv[])4 {5 intA, B, res;6scanf"%d%d", a, b);7 8 Divide (A, b);9 Tenprintf"%d\n", res); One return 0; A}1037:c Language Programming Tuto
Problem DescriptionThis day the teacher again to small Hao out a topic: give you three lengths, respectively, A,b,c match, let you calculate the three matches can make up of the Triangle area.InputEnter each row to include three number a,b,c.OutputThe area of the output triangle for each row (reserved three decimal places), cannot be composed of triangles told the small Hao output "no!".Sample Input1 2 33) 4 5Sample Outputno!6.000HINT1#include 2#include 3 intMain ()4 {5 Doubles,a,b,c,p;6
Problem DescriptionThe teacher gave a title to Xiao Hao: give you a value of n (within 32 bits) in seconds, let you convert to: minutes: seconds output. Now that little Howe is in a quandary, please help him solve the problem.InputEnter a positive integer of n seconds per line.Outputfor each set of test data, output a row of results: minutes: seconds. (24-hour system)Sample Input560Sample Output00:00:0500:01:00HINT#include intHh,mm,ss;voidConvertime (Longsec) {hh=sec/3600; MM= (sec-hh*3600L)/ -;
The title describes the sum of the diagonal elements of a 3x3 matrix. Input matrix output main diagonal sub-diagonal element and sample input1 2 31 1 13 2 1Sample output3 71#include 2 3 intMainintargcChar Const*argv[])4 {5 inta[3][3], I, J;6 intDiagonal1 =0, Diagonal2 =0;7 8 //input9 for(i =0; I 3; i++)Ten { One for(j =0; J 3; J + +) A { -scanf"%d", a[i][j]); - } the } - -Diagonal1 = a[0][0] + a[1][1] +a[2][2]; -Diagonal2 = a[2][0] + a[1][1] +a[
The title description writes a function that enables a given two-dimensional array (3x3) to transpose, that is, the row and column interchange. Enter a 3x3 matrix output to transpose matrices sample input1 2 34 5 67 8 9Sample output1#include 2 3 4 voidConvertinta[][3],intRowintCol//two-dimensional array when making formal parameters, the second must be written5 {6 intI, J, temp;7 for(i =0; i )8 {9 for(j = i; J )Ten { One //Exchange A if(I! =j
Programming | Tutorial 2.6 Event Monitor
event has a habit, is "clique", under normal circumstances, some objects are not receive some events, such as a dynamic text can not accept mouse events. If we write code that specifies the event-handling code for a dynamic text:
Mytextfield_txt.onmousedown = function () {
}
when we click the mouse over it, the code does not execute because it does not re
Programming | Tutorials
1.3.4 Standalone script file
Open the menu "file-> new" and select "Action Script File" from the New Document dialog box to establish independence. As files, the biggest advantage of this file is that it can be reused. For example, the scripts you create in a project can be placed in a separate. As files, you can call this directly if other items use similar functionality. The code in the as file. This can greatly improve the
This article mainly introduces the Linux multithread programming detailed tutorial, provides the code which the thread realizes the communication through the signal quantity, everybody reference uses the bar Thread classification nbsp; threads can be divided into user-level and core-level threads according to their dispatchers. nbsp; (1) User-level thread nbsp; user-level thread is mainly to solve the pro
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