Getting Started with Java transforms

Design ideas

It is important not to say much more than to build the most basic Java creation and then throw an exception handler to detect the user's input. Then you have to enter the work, needless to say, the online tutorial has a scanner input method, we introduce a little bit.

Finally, the user input string to determine the number of times an addition cycle, and in the final output.

Flow chart:

Program

ImportJava.io.*;ImportJava.util.Scanner; Public classShuru {/**     * @paramargs*/     Public Static voidMain (string[] args)throwsioexception{//TODO auto-generated Method StubSystem.out.println ("Please enter a number"); Scanner SC=NewScanner (system.in);//Console InputString Input=Sc.nextline (); System.out.println ("You have entered" +input); Input=Input.trim (); String[]temp=input.split (""); Double[]nums=New Double[Temp.length];//character Length                        Doubleaaa=0;//Store SumSystem.out.println ("The result is");  for(inti=0;i<temp.length;i++) {Nums[i]=double.parsedouble (Temp[i]); if(i==0) System.out.print (Nums[i]); Else    if(nums[i]>0) System.out.print ("+"+Nums[i]); Else        if(nums[i]<0) System.out.print (Nums[i]); ElseSystem.out.print ("+" +Nums[i]); AAA+=Nums[i]; } System.out.print ("="+AAA); }}

Run

Getting Started with Java transforms