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How to install Java in machine?

Shiva Gautam September 01, 2020

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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Shiva Gautam

Posted by Shiva Gautam

Hi, I'm Shiva Gautam. With over 15 years of diverse experience in various IT domains, I am now an entrepreneur focusing on both training and software development. My expertise spans across multiple technologies, and I've authored numerous articles on subjects including Java, Python, REACT, NODE, ANGULAR, Cloud, software testing, Django framework, C#, Flutter, Salesforce, Ruby on Rails, .NET, AWS, DEVOPS, AI/ML and more. For additional information, please visit shivaconceptsolution.com and kangaroosoftware.net.

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11 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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