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How to install Java in machine?

1) To install Java Software in machine first we download Java set up from this link
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
2) Extract Zip file and Install them
3)  It provide complete environment of JDK and JRE under
C:/Program Files/Java/JDK
C:/Program Files/Java/JRE
4)  Set path of C:/program files/java/jdk/bin
 Right click on my computer|My pc  ---> Properties  ----> Advances System Setting ---> Environment Variable---> Click on New Button (User Variable)
Variable name:-    path
Variable value:-  C:\Program Files\Java\jdk1.8.0_161\bin
5) click on OK,OK,OK Button
JAVA SAMPLE Program
import java.util.Scanner;
class Swap
{
   public static void main(String args[])
   {
      Scanner sc = new Scanner(System.in);
      int a,b;
      System.out.println("Enter First Number");
      a=sc.nextInt();  //scanner object to integer
      System.out.println("Enter Second Number");
      b=sc.nextInt();  //scanner object to integer
      a=a+b;
      b=a-b;
      a=a-b;
      System.out.println("a="+a);
      System.out.println("b="+b);
   }
}
//WAP to calculate the addition of complex numbers?
//WAP to reverse a five-digit number without using a loop and find max and second max element without using Loop?

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Comments

  1. UnknownSeptember 24, 2020 at 7:26 PM

    class Complex
    {
    public static void main(String args[])
    {
    int a=2,b=4;
    int c=3,d=2;
    System.out.println("First Number is: "+a+"+"+b+"i");
    System.out.println("Second number is: "+c+"+"+d+"i");
    int x=a+c;
    int y=b+d;
    System.out.println("Sum is: " +x+"+"+y+"i");
    }
    }

    ReplyDelete
  2. UnknownNovember 3, 2020 at 2:49 PM

    public class ss
    {
    public static void main(String args[])
    {
    float p,q,r,si;
    p=10000;
    q=2;
    r=2;
    si=(p*q*r)/100;
    System.out.println("result is ="+si);
    }
    }

    ReplyDelete
  3. AnonymousNovember 4, 2020 at 2:04 PM

    Q:- WAP to calculate the addition of complex numbers?
    Solution :-
    class Complex
    {
    public static void main(String args[])
    {
    int a=2,b=4;
    int c=3,d=2;
    System.out.println("First Number is: "+a+"+"+b+"i");
    System.out.println("Second number is: "+c+"+"+d+"i");
    int x=a+c;
    int y=b+d;
    System.out.println("Sum is: " +x+"+"+y+"i");
    }
    }

    ReplyDelete
  4. AnonymousNovember 4, 2020 at 2:27 PM

    Q:- wap to find the Area and Perimeter of Rectangle ?
    Solution:-
    class Area
    {
    private int l,b;
    public void getdata(int x, int y)
    {l=x;
    b=y;}

    public void showdata1()
    { int p;
    p=l*b;
    System.out.println("Area of Rectangle is " +p);}

    public void showdata2()
    { int q;
    q=2*(l+b);
    System.out.println("Perimeter of Rectangle is "+q);}


    public static void main(String args[])
    {Area A1 = new Area();
    Area A2 = new Area();
    A1.getdata(2,50);
    A1.showdata1();
    A2.getdata(2,50);
    A2.showdata2();}
    }

    ReplyDelete
  5. UnknownOctober 14, 2021 at 4:21 PM

    Swap two numbers?
    import java.util.Scanner;
    class Swapping
    {
    public static void main(String []args)
    {
    int a,b;
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter any number");
    a=sc.nextInt();
    b=sc.nextInt();
    a=a+b;
    b=a-b;
    a=a-b;
    System.out.println("a=" +a);
    System.out.println("b=" +b);
    }
    }

    ReplyDelete
  6. AnonymousOctober 14, 2021 at 4:25 PM

    Roshnee Rathode

    Q.Swap two number
    import java.util.Scanner;
    class Swapping
    {
    public static void main(String []args)
    {
    int a,b;
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter any number");
    a=sc.nextInt();
    b=sc.nextInt();
    a=a+b;
    b=a-b;
    a=a-b;
    System.out.println("a=" +a);
    System.out.println("b=" +b);
    }
    }

    ReplyDelete
  7. yogesh serokeOctober 18, 2021 at 4:15 PM

    //Yogesh seroke
    class Swapping
    {
    public static void main(String []args)
    {
    int a,b,c;
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter any number");
    a=sc.nextInt();
    b=sc.nextInt();
    c=a;
    a=b;
    b=c;
    System.out.println("a=" +a);
    System.out.println("b=" +b);
    }
    }

    ReplyDelete
  8. yogesh serokeOctober 18, 2021 at 4:16 PM

    //Yogesh seroke
    class Swapping
    {
    public static void main(String args[])
    {
    int a,b,c;
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter any number");
    a=sc.nextInt();
    b=sc.nextInt();
    c=a;
    a=b;
    b=c;
    System.out.println("a=" +a);
    System.out.println("b=" +b);
    }
    }

    ReplyDelete
  9. kshitijNovember 11, 2021 at 3:46 PM

    import java.util.Scanner;
    class RevMaxM
    {
    public static void main(String args[])
    {
    int r,rer,max,max2;
    Scanner sc=new Scanner(System.in);
    System.out.println("enter any five digit number");
    r=sc.nextInt();
    rer=r%10;
    r=r/10;
    System.out.print(+rer);
    max=rer;
    max2=0;
    rer=r%10;
    r=r/10;
    System.out.print(+rer);
    if(rer>max)
    max=rer;
    if(rer>max2 && rermax)
    max=rer;
    if(rer>max2 && rermax)
    max=rer;
    if(rer>max2 && rermax)
    max=rer;
    if(rer>max2 && rer<max)
    max2=rer;
    System.out.print("maximum and second maximum numbers are:-"+max+" "+max2);

    }
    }

    ReplyDelete
  10. UnknownNovember 12, 2021 at 5:58 PM

    Sandeep kelwa
    class Swap
    {
    public static void main(String args[])
    {
    int a,b,c;
    a = 1;
    b = 2;
    c = a;
    a = b;
    b = c;

    System.out.println("after a is =" +a);
    System.out.println("after b is =" +b);
    }
    }

    ReplyDelete
  11. MeltyMagOctober 25, 2024 at 12:27 PM

    Swap two numbers, how ?
    https://upnovelas.co
    import java.util.Scanner;
    class Swapping
    {
    public static void main(String []args)
    {
    int a,b;
    Scanner sc=new Scanner(System.in);
    System.out.println("Enter any number");
    a=sc.nextInt();
    b=sc.nextInt();
    a=a+b;
    b=a-b;
    a=a-b;
    System.out.println("a=" +a);
    System.out.println("b=" +b);
    }
    }

    ReplyDelete

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