Lab 3 Exercise Questions at Java Programming

import java.util.Scanner;

class labquestion1 {

   public static void main( String [] args) {
   
   Scanner scanner = new Scanner(System.in);
   scanner.useDelimiter ("!");
         
   System.out.print("Enter your string with an exclametion mark(!):");
   String first = scanner.next();
   String second = scanner.next();
       
   System.out.println(first);
   System.out.println(second); 
   
      }
  }   

import java.util.Scanner;

class labquestion2 {

   public static void main (String [] args) {

   

      double P,R,N, Amount;

      

      Scanner scanner = new Scanner(System.in);

      System.out.print ("Enter the Amount:");

      

      P = scanner.nextDouble();

      

      System.out.print("\n Enter the rate of interest:");

      

      R = scanner.nextDouble();

      

      System.out.print("\n Enter the number of years:");

      

      N = scanner.nextDouble();

      

      Amount = ( P*Math.pow((1+R/100), N));

      

      System.out.print ("\n The amount earned after"  +N+  "years is:" +Amount ); 

    

   }

}    

import java.util.Scanner;

class labquestion3 {

   public static void main (String [] args) {

    

      final double gravConst = 6.67*Math.pow(10, -11);

      final double massEarth = 5.98*Math.pow(10, 24);

      double rexp, rcoef, Satvelocity, radius;

      

      System.out.print ("Enter the coeffient value of the radius:");

      Scanner scanner = new Scanner(System.in);

      

      rcoef = scanner.nextDouble();

      

      System.out.print("Enter the explonent of the radius: ");

      

      rexp = scanner.nextDouble();

      radius = rcoef*Math.pow(10, rexp);

      

      System.out.println("The radius entered is: " + radius);

      

      Satvelocity = Math.sqrt ((gravConst*massEarth)/radius);

      

      System.out.println("The satellite velocity is: "+ Satvelocity+"m/s");

   }

}         


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