Write a java program by Using Scanner Class

Reading the values from keyboard In java By Scanner Class

Q. Write a Java program which will read the 2 integer values Dynamically and add them.

Program:-

import java.util.Scanner;

class  Sum

{

public static void main(String[] args)

{

Scanner s=new Scanner(System.in);

System.out.println("Enter the First Value");

int x1=s.nextInt();

System.out.println("Enter the Second Value");

int x2=s.nextInt();

int x3=x1+x2;

System.out.println("sum="+x3);

}

}

Output:-

D:\java>javac Sum.java ↵

D:\java>Java Sum ↵

Enter the First value

12

Enter the Second value

12

Sum = 24

Q. Write a Java program which will read the 2 integer values Dynamically and Multiply them.

Program:-

import java.util.Scanner;

class  Multiply

{

public static void main(String[] args)

{

Scanner s=new Scanner(System.in);

System.out.println("Enter the First Value");

int x1=s.nextInt();

System.out.println("Enter the Second Value");

int x2=s.nextInt();

int x3=x1*x2;

System.out.println("Multiply="+x3);

}

}

Output:-

D:\java>javac  Mutliply.java ↵

D:\java>Java Mutliply↵

Enter the First value

2

Enter the Second value

2

Multiply = 4

Q. Write a Java program which will read the 2 String values Dynamically and concat them.

import java.util.Scanner;

class Names

{

public static void main(String[] args) 

{

Scanner s=new Scanner(System.in);

System.out.println("Enter the first name");

String a=s.nextLine();

System.out.println("Enter the Second name");

String b=s.nextLine();

String c=a+b;

System.out.println("Concat="+c);

}

}

Output:-

D:\java>javac Names .java ↵

D:\java>Java Names↵

Enter the First Name

Lucky

Enter the Second Name

Bujji

Concat=LuckyBujji

Q. Write a java program to display the student details with dynamically .

Program:-

import java.util.Scanner;

class Student

{

int studentid;

String name;

float marks;

String classname;

void studentInfo()

{

Scanner s=new Scanner(System.in);

System.out.println("Enter the Student ID");

studentid=Integer.parseInt(s.nextLine());

System.out.println("Enter the Student name");

name=s.nextLine();

System.out.println("Enter the Student Marks");

marks=Float.parseFloat(s.nextLine());

System.out.println("Enter the Student classname");

classname=s.nextLine();

}

void displayStudentInfo()

{

System.out.println("Enter the Student ID="+studentid);

System.out.println("Enter the Student Name="+name);

System.out.println("Enter the Student marks="+marks);

System.out.println("Enter the Student class="+classname);

}

}

class  StudentInfo

{

public static void main(String[] args) 

{

Student s1=new Student();

s1.studentInfo();

s1.displayStudentInfo();

}

}