Week 2 assignment:

Transcription

1 Week 2 assignment: Assignments: 1. Write a Java program to check whether a number is Buzz or not. 2. Write a Java program to calculate factorial of Write a Java program for Fibonacci series. 4. Write a Java program to reverse a number. 5. Admission to a professional course is subject to the following conditions: (a) marks in Mathematics >= 60 (b) marks in Physics >=50 (c) marks in Chemistry >=40 (d) Total in all 3 subjects >=200 (Or) Total in Maths & Physics>=150 Given the marks in the 3 subjects of n (user input) students, write a program to process the applications to list the eligible candidates. 6. Write a Java program to find all roots of a quadratic equation. 7. Write a Java program to calculate the sum of natural numbers up to a certain range. 8. Write a Java program to print all multiple of 10 between a given interval. 9. Write a Java program to generate multiplication table. 10. Write a Java program to find HCF of two Numbers. 11. Write a Java program to find LCM of two Numbers. 12. Write a Java program to count the number of digits of an integer. 13. Write a Java program to calculate the exponential of a number. 14. Write a Java program to check whether a number is palindrome or not. 15. Write a Java program to check whether a number is prime or not. 16. Write a Java program to convert a Binary Number to Decimal and Decimal to Binary. 17. Write a Java program to find median of a set of numbers. 18. Write a program to compute the value of Euler s number that is used as the base of natural logarithms. Use the following formula. e= 1+ 1/1! +1 /2! + 1/ /n! 19. Write a Java program to generate all combination of 1, 2, or 3 using loop. 20. Write a Java program to read two integer values m and n and to decide and print whether m is multiple of n. 21. Write a Java program to display prime numbers between a given interval. 22. Write a Java program to check whether a given number is Armstrong Number or not. Write Java programs for the patterns given bellow: (23-25)

2 1. import java.util.*; class Input int a; void method1() Scanner sc= new Scanner(System.in); System.out.print("Enter the number : "); a=sc.nextint(); void method2() if(a%7==0) System.out.println("It is a buzz number "); else if(a%10==7) System.out.println("It is a buzz number "); else System.out.println("It is not a buzz number "); class Buzz public static void main(string args[]) Input obj= new Input(); obj.method1(); obj.method2();

3 2. import java.util.*; class Fact void fac() System.out.println("Factorial of 12"); long sum=1; for(int i=2;i<=12;i++) sum=sum*i; System.out.println("The value is " +sum); class Factorial public static void main(string args[]) Fact ob=new Fact(); ob.fac();

4 3. import java.util.*; class Fibb void fi() System.out.println("Enter the length"); int s=sc.nextint(); int a=0,j=1; System.out.print("0 1 "); for(int i=0;i<s;i++) int sum=a+j; a=j; j=sum; System.out.print(sum+" "); class Fibonacci public static void main(string args[]) Fibb ob=new Fibb(); ob.fi();

5 4. import java.util.*; class Revno void rv() System.out.println("Enter the no"); int s=sc.nextint(); int rev=0; while(s>0) int rem=s%10; rev=rev*10+rem; s=s/10; System.out.println( THE REVERSE IS +rev); class Reverse public static void main(string args[]) Revno ob=new Revno(); ob.rv();

6 5. import java.util.*; class Addm void ad() System.out.println("Enter the marks of Maths, Physics, Chemistry"); int m=sc.nextint(); int p=sc.nextint(); int c=sc.nextint(); int tot2=m+p; int total=m+p+c; if((m>=60 && p>=50 && c>=40 && total>=200 ) tot2>=150) System.out.println("Admission Succeded"); else System.out.println("No Admission"); class Addmission public static void main(string args[]) Addm ob=new Addm(); ob.ad();

7 6. import java.util.*; class Quad double x,y; void ma() System.out.println("Enter the Quadratic Eq: (_x^2)+(_x)+ _"); int a=sc.nextint(); int b=sc.nextint(); int c=sc.nextint(); x=math.sqrt((math.pow(b,2)+(4*a*c))); y=(math.pow(b,2)); double root=(y+x/2*a); System.out.println("The root is :"+root); class Quadractic public static void main(string args[]) Quad ob=new Quad(); ob.ma();

8 7. import java.util.*; class Sum int n=0; void sm(int b) for(int i=0;i<b;i++) n=n+i; System.out.println("The sum is =" +n); class Sm public static void main(string args[]) System.out.println("Enter the input:"); int a=sc.nextint(); Sum obj=new Sum; obj.sm(a);

9 8. import java.util.*; class Range void ma() System.out.println("Enter the Range"); int ran=sc.nextint(); int m=10; for(int a=1;a<=ran;a++) int sum=a*m; System.out.println("10 * "+a+"="+sum); class Mult public static void main(string args[]) Range ob=new Range(); ob.ma();

10 9. import java.util.*; class Multab void ma() System.out.println("Enter the Multiplier No"); int m=sc.nextint(); System.out.println("Enter the Range"); int ran=sc.nextint(); for(int a=1;a<=ran;a++) int sum=a*m; System.out.println(m+" * "+a+"="+sum); class Multiplicationtable public static void main(string args[]) Multab ob=new Multab(); ob.ma();

11 10. import java.util.scanner; class Hcfs void fndhcf(int a,int b) int hcf=1; for(int i=1;i<=a;i++) if(a%i==0 && b%i==0) hcf=i; System.out.println("hcf is "+hcf); class Hcf public static void main(string args[]) System.out.println("Enter Number"); int x =sc.nextint(); System.out.println("Enter Number"); int y =sc.nextint(); Hcfs obj=new Hcfs(); obj.fndhcf(x,y);

12 11. import java.util.scanner; class A int n1,n2,gcd; void input() System.out.println("Enter the First no."); n1=sc.nextint(); System.out.println("Enter the Second no."); n2=sc.nextint(); void lcm() for(int i = 1; i <= n1 && i <= n2; ++i) if(n1 % i==0 && n2 % i==0) gcd = i; int lcm=(n1*n2)/gcd; System.out.printf("LCM of %d and %d is %d", n1, n2, lcm); class LCM public static void main(string ar[]) A a=new A(); a.input(); a.lcm();

13 12. import java.util.*; class Count void ma() System.out.println("Enter the No"); int m=sc.nextint(); int c=0; while(m>0) m=m/10; c++; System.out.println("The no of digits "+c); class Countint public static void main(string args[]) Count ob=new Count(); ob.ma();

14 13. import java.util.scanner; class A double y=0,x=0,n; void input() System.out.println("Enter the no."); n=sc.nextint(); System.out.println("Enter the power"); x=sc.nextint(); void calc() y=math.pow(n,x); System.out.println("THE NO. is:"+n+" Power is:"+x+" the total value is:"+y); class Power public static void main(string ar[]) A a=new A(); a.input(); a.calc();

15 14. import java.util.scanner; class A int r,x,sum=0,n; void input() System.out.println("Enter the no."); n=sc.nextint(); void calc() x=n; while(n!=0) r=n%10; sum=(sum*10)+r; n=n/10; if(n==x) System.out.println("PALINDROME NO"); else System.out.println("NOT PALINDROME NO"); class Palindrome public static void main(string ar[]) A a=new A(); a.input(); a.calc();

16 15. import java.util.scanner; class A int y=0,x=0,n; void input() System.out.println("Enter the no."); n=sc.nextint(); void pm() for(y=1;y<=n;y++) if(n%y==0) x++; if(x==2) System.out.println("PRIME NO."); else System.out.println("NOT PRIME NO."); class Prime public static void main(string [] args) A a=new A(); a.input(); a.pm();

17 16. import java.util.scanner; class A int p,decimal=0,n,r,n1,i,x,j; int []a=new int[100]; void input() System.out.println("Enter the Binary no."); n=sc.nextint(); System.out.println("Enter the Decimal no."); n1=sc.nextint(); void btod() x=n; while(n!=0) decimal+=((n%10)*math.pow(2,p)); n=n/10; p++; System.out.println("Binary is:"+x+"converted to decimal:"+decimal); void dtob() x=n1; while(n1!=0) r=n1%2; a[i]=r; n1=n1/2; i++; System.out.print("Decimal is:"+x+"converted to Binary:"); for(j=i-1;j>=0;j--) System.out.print(a[j]); class BinaryDecimal public static void main(string ar[]) A a=new A(); a.input(); a.btod(); a.dtob();

18 17. import java.util.scanner; class A int x,n,i; double z; int a[]=new int[50]; void input() System.out.println("Enter the no."); n=sc.nextint(); void calc() for(i=1;i<=n;i++) a[i]=sc.nextint(); x=n/2; if(n%2==0) z=(a[x]+a[x+1]); System.out.println("MEDIAN is:"+(z/2)); else System.out.println("MEDIAN is:"+a[x+1]); //end of class class Median public static void main(string ar[]) A a=new A(); a.input(); a.calc();

19 18. import java.util.scanner; class A double m,n=0,e=0,fact=1; void input() System.out.println("Enter the last no."); n=sc.nextdouble(); void pm() for(int i=1;i<(n);i++) fact=fact*i; m=(1/fact); System.out.println("Series:"+m); e=e+m; System.out.println("Sum is:"+(e+1)); class Euler public static void main(string ar[]) A a=new A(); a.input(); a.pm();

20 19. class A int i,j,k; void calc() for(i=1;i<=3;i++) for(j=1;j<=3;j++) for(k=1;k<=3;k++) System.out.println("ALL POSSIBLES Combination of no.s are:"+i+j+k); class Combinations public static void main(string ar[]) A a=new A(); a.calc();

21 20. import java.util.scanner; class A int m,n; void input() System.out.println("Enter the First no. SAY n"); n=sc.nextint(); System.out.println("Enter the Second no. SAY m"); m=sc.nextint(); void pm() if(n%m==0) System.out.println("THE NO."+n+"is multiple of"+m); else System.out.println("NOT MULTIPLE"); class MultipleofNo public static void main(string ar[]) A a=new A(); a.input(); a.pm();

22 21. import java.util.scanner; class A int low,high,i,j,x; void input() System.out.println("Enter the lower limit"); low=sc.nextint(); System.out.println("Enter the upper limit"); high=sc.nextint(); void pm() while (low < high) boolean flag = false; for(int i = 2; i <= low/2; ++i) // condition for nonprime number if(low % i == 0) flag = true; break; //end of if //end of for if (!flag) System.out.print(low + " "); ++low; //end of while //end of function pmm //end of class class LimitPrime public static void main(string a[]) A obj=new A(); obj.input(); obj.pm();

23 22. import java.util.scanner; class Am int y=0,m,x=0,n; void input() System.out.println("Enter the no."); n=sc.nextint(); void amg() m=n; while(n!=0) x=n%10; y=y+x*x*x; n=n/10; if(m==y) System.out.println("AMSTRONG NO."); else System.out.println("NOT AMSTRONG NO."); class Amstrong public static void main(string [] args) Am a=new Am(); a.input(); a.amg();

24 23. import java.util.*; class Patm void makingofpattern(int a) int k=1; for (int i = 1; i <= a/3; i++) for (int j = 1; j <= i+1; j++) System.out.print(k+" "); k++; System.out.println(); class Pattern1 public static void main(string ar[]) System.out.println("Enter your limit for pattern "); int p=sc.nextint(); Patm obj=new Patm(); obj.makingofpattern(p); //end of main //end of class

25 24. import java.util.*; class Patm void makingofpattern(int a) for (int i = 1; i <= a; i++) for (int j = 1; j <= a - i; j++) System.out.print(" "); for (int k = i; k >= 1; k--) System.out.print(k); for (int l = 2; l <= i; l++) System.out.print(l); System.out.println(); class Pattern1 public static void main(string ar[]) System.out.println("Enter your limit for pattern "); int p=sc.nextint(); Patm obj=new Patm(); obj.makingofpattern(p); //end of main //end of class

26 25. import java.util.*; class Patm void makingofpattern(int a) int k=1; for (int i = 1; i <= a; i++) //Printing i spaces at the beginning of each row for (int j = 1; j < i; j++) System.out.print(" "); //Printing i to rows value at the end of each row for (int j = i; j <= a-1; j++) if(j==i j==a-1) System.out.print(k+" "); else System.out.print(" "); k++; System.out.println(); class Pattern1 public static void main(string ar[]) System.out.println("Enter your limit for pattern "); int p=sc.nextint(); Patm obj=new Patm(); obj.makingofpattern(p+1); //end of main //end of class