Question

The following program supposes to calculate the area of a rectangle and produce the following output. Area of rectangle = 20 Unfortunately, the program has Compile-time and Run-time errors that prevent the program from running and producing the correct result. Using the table 2.1 below, allocate the error(s) on each program line. 1 class Rectangle{ 2 int length 3 Int width; 4 viod insert(int l, int w){ 5 length == l; 6 width = ww; 7 8 void calculateArea( { 9 System.out.println("Area of rectangle = "+ length / width);} 10 } 11 class TestRectangle1{ 12 public void main(String args[]){ 13 Rectangle r1 = Rectangle(); 14 r.insert(5,4); 15 r1.calculatearea(); 16 }} 17 }

Answer 1

JAVA CODE after removal of errors

============================================================================================

package hello;

class Rectangle{
   int length;
   int width;
   void insert(int l, int w)
   {
       length = l;
       width = w;
   }
   void calculateArea()
   {
       System.out.println("Area of rectangle = "+ length*width);
   }
}

public class TestRectangle1 {

   public static void main(String[] args) {
       // TODO Auto-generated method stub
       Rectangle r1 = new Rectangle();
       r1.insert(5,4);
       r1.calculateArea();
   }

}

============================================================================================

Output