Basic-String-operation-in-java

import java.io.; class Rectangle { int length,width,p; Rectangle(int l, int b) { length=l; width=b; p=2(l+b); } void show() { System.out.print("\n length = " +length+ ", width=" +width); System.out.print("\n Area=" + length*width); System.out.print("\n Perimeter=" +p); } } class Geometry { public static void main(String args[])throws IOException { InputStreamReader obj= new InputStreamReader(System.in); BufferedReader in= new BufferedReader(obj); System.out.print("\n enter dimension of Rectangle :"); int a= Integer.parseInt(in.readLine()); int b=Integer.parseInt(in.readLine()); // Rectangle obj1=new Rectangle( ); // obj1.show(); Rectangle obj2=new Rectangle(a,b); obj2.show(); } }