java code

input variable


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package p1;
import java.util.Scanner;



public class Class1 {

      public static void main(String[] args) {


           Scanner input = new Scanner(System.in);
           String str;
           System.out.print("enter your nice name :  ");
           str=input.nextLine();
           System.out.println("hey "+str);

           int number;
           System.out.print("enter a number : ");
           number=input.nextInt();
           System.out.println("your number is :"+number);


           double dou;
           System.out.println("enter any double number  : ");
           dou=input.nextDouble();
           System.out.println("double value : "+dou);



    }






}
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class + method + Constructor



package oop;

class box{

    int h;
    int w;
    int d;


    box(int hh ,int ww, int dd)
    {
        h=hh;
        w=ww;
        d=dd;
    }

     box()
     {

     }



     void setvalue(int hh ,int ww, int dd)
     {
         h=hh;
         w=ww;
         d=dd;
     }


     void display()
     {
         System.out.println("height = "+h);
         System.out.println("depth  = "+d);
         System.out.println("weidth  = "+w);
     }

}

public class NewClass101 {

    public static void main(String[] args) {

        box  b1;// object refer
        b1= new box(); // object create

        b1.setvalue(432, 24, 324);

       // System.out.println("d ="+b1.d+" h = "+b1.h+" w = "+b1.w);

       b1.display();

        System.out.println("");
        box  b2 = new box();

        b2.setvalue(2, 10, 1);

   //  System.out.println("d ="+b2.d+" h = "+b2.h+" w = "+b2.w);
      b2.display();

        System.out.println("");
       box b3 = new box(1,2,3);
       b3.display();

    }







}