Gendou.com Forum: Programming: I need to compile, but no TextPad or anything

I need to compile, but no TextPad or anything

Link | by

on 2010-10-20 21:16:15 (edited 2010-10-20 21:20:59)

please check this, I really need help

import java.util.*;

public class Q1401111503
{
public static void main(String[]arg)
{
Scanner in=new Scanner(System.in);
int a;
float b;
int c;
int d;
double e;
int f;
double g;

System.out.println(" Let's play with area and Circumference ^__^");

System.out.println(" =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-");

System.out.println("Area and Circumference of square");
System.out.println("-------------------------");
System.out.println("input the side of Square : ");
a= in.nextInt();
System.out.println("Area of square is = side * side = "+a*a);

System.out.println("Circumference of square is = 4 * side = "+4*a);

System.out.println("Area of circle and half of circle");
System.out.println("-------------------------------------");
System.out.println("input radius of the circle : ");
b= in.nextFloat();
e=b*b*Math.phi;

System.out.println("Area of circle with radius "+b+" = Pi * r * r = "+e);

System.out.println("Area of half circle with radius "+b+" ="+b*b*Math.phi/2);

System.out.println("Area and Circumference of rectangle");
System.out.println("-------------------------------------");
System.out.println("input length of rectangle : ");
c=in.nextInt();
System.out.println("input width of rectangle : ");
d=in.nextInt();
f=c*d;

System.out.println("Area of rectangle with length "+c+" and width "+d+" = p * l = "+f);

System.out.println("Circumference of rectangle with length "+c+" and width "+d+" = 2 * (p + l) ="+2*(c+d));

System.out.println("If the Area of rectangle minus the Area of Circle , The result is "+f-e);

System.out.println("Just notice to you, The result from 3 % 2 is 1");

}

}

thanks

Re: I need to compile, but no TextPad or anything

Link | by

on 2010-11-08 06:07:37 (edited 2010-11-08 06:17:40)

You probably forget to write import java.math.*;
And it's not Math.phi by the way, the correct expression is Math.PI.

The last is... you should add a bracket on this line
System.out.println("If the Area of rectangle minus the Area of Circle , The result is " + (f - e));

The rest is an OK! Em... why can't use compiler or such? If happen by any chance are you in the middle of Exam at the time?

Re: I need to compile, but no TextPad or anything

Link | by

on 2010-11-08 06:22:26

hi, pioneer plus, thanks for the help... but was solved several days ago...

I was using notepad, so I just... well, you know, putting that on forums and send them to my friends as a message...

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