Input and output exercises for eclipse

     Public void Main (String[]args) {                                            / /             Instantiate input scanner //system.in input stream             New  Scanner (system.in);                        System.out.print ("Please enter name:");             // wait for input            String Strin =sc.nextline ();                         // What the output receives        System.out.println ("The name you entered is:" + Strin);           }                                     

2. Enter the radius of the circle to calculate the circumference and area of the circle

 PackageCom.hanqi.practice;ImportJava.util.Scanner; Public classCirtle { Public Static voidMain (string[] args) {//TODO Auto-generated method stubsScanner sc =NewScanner (system.in); Final DoublePI =3.14; System.out.println ("Please enter the size of the radius"); intR =Sc.nextint (); System.out.println ("The circumference of the circle is:" +2*pi*R); System.out.println ("The area of the circle is:" +pi*r*R); }}

Output results

Input and output exercises for eclipse