Lab04 CSE110_JAVA.txt

Homework#####################################################################




Task01-----------------------------------------------------------------


import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int n= num;
    int sum=0;
    for (int i=1; num>=1; i=i+2) {
      System.out.println(i);
      sum +=i;
      num--;
    }
    System.out.println("The Sum of odd Natural Numbers up to " + n+ " terms is: " + sum);
 
  /* ADD YOUR CODE HERE */
    }
}




Task02------------------------------------------------------------------




import java.util.Scanner;

public class Lab04 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        int sum = 0;
        for (int i = 1; i <= 10; i++) {
            System.out.print("Enter Number " +i+": ");
            int number = scanner.nextInt();
            sum += number;
            System.out.println("Sum = " + sum);
        }
    }
}





Task03-------------------------------------------------------------------




import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int sum=0;
    for (int i=0; i<=num; i++) {
      if (i%5==0 && i%3!=0) {
        System.out.println(i);
      }
    }
    
 
  /* ADD YOUR CODE HERE */
    }
}




Task04---------------------------------------------------------




import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int count=0;
    for (int i=0; num>0; i++) {
      num=num/10;
      //System.out.println("num = "+num);
      count +=1;
      //System.out.println("c = "+count);
      
    }
    System.out.println("Total digits = "+count);
 
  /* ADD YOUR CODE HERE */
    }
}




Alter Task04@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@



import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int count=0;
    while (num != 0) {
      num = num / 10;
      count++;
    }

    System.out.println("Total digits = "+count);
 
  /* ADD YOUR CODE HERE */
    }
}




Task05--------------------------------------------------------


import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int count=0;
    int temp=num;
    
    while (num != 0) {
      num = num / 10;
      count++;
    }
    int divisor = (int) Math.pow(10,count-1);
    //System.out.println("Total digits = "+count);
    //System.out.println("divisor = "+divisor);
    
    for (int i=0; temp>0; i++){

      int digit = temp/divisor;
      System.out.print(digit);
      temp %= divisor;
      if (temp!=0){
        System.out.print(", ");
      }
      divisor= divisor/10;
    
    } 
  /* ADD YOUR CODE HERE */
    }
}




Alter Task05@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@


import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int count=0;
    int temp=num;
    
    while (num != 0) {
      num = num / 10;
      count++;
    }
    //System.out.println("Total digits = "+count);
    //System.out.println("divisor = "+divisor);
    
    for (int i = count - 1; i >= 0; i--){
      int divisor = (int) Math.pow(10, i);
      int digit = temp/divisor;
      System.out.print(digit);
      temp %= divisor;
      if (temp!=0){
        System.out.print(", ");
      }
    
    } 
  /* ADD YOUR CODE HERE */
    }
}




Alter Task05---------------------------------------------------------------------


import java.util.Scanner;
public class Lab04 {
  public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in);
    System.out.print("Input number of terms: ");
    int num = scanner.nextInt();
    int count=0;
    int temp=num;
    
    while (num != 0) {
      num = num / 10;
      count++;
    }
    //System.out.println("Total digits = "+count);
    //System.out.println("divisor = "+divisor);
    int divisor = (int) Math.pow(10, count-1);
    for (int i = 0; i<count; i++){
      int digit = temp/divisor;
      System.out.print(digit);
      temp %= divisor;
      if (temp!=0){
        System.out.print(", ");
      }
      divisor= divisor/10;
    
    } 
  /* ADD YOUR CODE HERE */
    }
}





Task06------------------------------------------------------------
(a)^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^



import java.util.Scanner;

public class Lab04 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int temp = 0;
        System.out.print("Enter a number: ");
        int number = scanner.nextInt();
        for (int i=2; i<number; i++) {
          if (number%i==0) {
            temp=1;
            break;
          }

        }
        if (temp==0) {
          System.out.println(number+" is a prime number");
        }
        else {
          System.out.println(number+" is not a prime number");
        }
    }
}




(b)^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^


import java.util.Scanner;

public class Lab04 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int sum = 0;
        System.out.print("Enter a number: ");
        int number = scanner.nextInt();
        for (int i=1; i<number; i++) {
          if (number%i==0){
            sum +=i;
          }
        }
        if (sum==number){
          System.out.print(number+" is a perfect number");
        }
        else {
          System.out.print(number+" is not a perfect number");
        }
    }