SIRISHA SANAPATHI

3.1.21

JAVA program pattern 2

import java.util.Scanner;

public class pattern3

{

public static void main(String args[])

{

int i,j;

Scanner sc=new Scanner(System.in);

System.out.println("Enter the number");

int n=sc.nextInt();

for(i=0;i<n;i++)

{

for(j=n-i;j>1;j--)

{

System.out.print(" ");

}

for(j=0;j<=i;j++)

{

System.out.print("*");

}

System.out.println();

}

OUTPUT

Enter a number

***

****

*****

******

JAVA program for pattern 1

import java.util.Scanner;

public class pattern1

{

public static void main(String args[])

{

int i,j;

Scanner sc=new Scanner(System.in);

System.out.println("Enter the number");

int n=sc.nextInt();

for(i=1;i<=n;i++)

{

for(j=1;j<=i;j++)

System.out.print("*");

System.out.println();

}

OUTPUT

Enter a number

*
**
***
****
*****
******

JAVA program for Fibonacci

class Fibonacci

{

public static void main(String args[])

{

int n1=0,n2=1,n3,i,count=10;

System.out.println(n1+""+n2);

for(i=2;i<count;i++)

{

n3=n1+n2;

System.out.println(""+n3);

n1=n2;

n2=n3;

}

OUTPUT

JAVA program for ASCII values

import java.util.Scanner;

public class ascii

{

public static void main(String args[])

{

System.out.println("Enter a character");

Scanner sc=new Scanner(System.in);

char ch=sc.next().charAt(0);

int asciivalue=ch;

System.out.println("the ascii value is:" +asciivalue);

}

OUTPUT
Enter a character

the ascii value is 97

JAVA program for palindrome

import java.util.Scanner;

public class palindrome

{

public static void main(String args[])

{

int i,sum=0,temp,r;

Scanner sc=new Scanner(System.in);

System.out.println("Enter the number");

int n=sc.nextInt();

temp=n;

while(n>0)

{

r=n%10;

sum=(sum*10)+r;

n=n/10;

}

if(temp==sum)

{

System.out.println("palindrome");

}

else

System.out.println("not palindrome");

}

OUTPUT
Enter the number 5454

not palindrome

JAVA program for factorial

import java.util.Scanner;

public class factorial

{

public static void main(String args[])

{

int i,fact=1;

Scanner sc=new Scanner(System.in);

System.out.println("Enter the number");

int num=sc.nextInt();

for(i=1;i<=num;i++)

{

fact=fact*i;

}

System.out.println("Factorial of"+num+"is:" +fact);

}

OUTPUT

Enter the number

Factorial of 5 is 120

JAVA program for armstrong number

import java.util.Scanner;

public class armstrong

{

public static void main(String args[])

{

int c=0,a,temp;

Scanner sc=new Scanner(System.in);

System.out.println("Enter the number");

int n=sc.nextInt();

temp=n;

while(n>0)

{

a=n%10;

n=n/10;

c=c+(a*a*a);

}

if(temp==c)

System.out.println("armstrong number");

else

System.out.println("not a armstrong number");

}

OUTPUT

Enter a number

not a armstrong number

JAVA program for prime

import java.util.Scanner;

public class prime

{

public static void main(String args[])

{

int i,m=0,flag=0;

Scanner sc=new Scanner(System.in);

System.out.println("Enter the number");

int n=sc.nextInt();

m=n/2;

if(n==0||n==1)

{

System.out.println(n+" is not a prime number");

}

else

{

for(i=2;i<=m;i++)

{

if(n%i==0)

{

System.out.println(n+"is not a prime number");

flag=1;

break;

}

if(flag==0)

System.out.println(n+ "is prime number");

}

OUTPUT

Enter the number 5

5 is prime number

JAVA simple hello program

class Simple

{

public static void main(String args[])

{

System.out.println("Hello Java");

}

OUTPUT

javac Simple.java

java Simple

Hello Java

How to run Java program

To run the java program first write the code in notepad and save it with the extension .java

and then open command prompt and compile the program (eg : javac Simple.java) After the compilation, to run the java code we need to call the Java interpreter ,to call the java interpreter we use java command and u need to [ass the filename you know which contains the byte code(eg:- java Simple)

C program to convert char into int and int to char

#include <stdio.h>

#include <stdlib.h>

int main()

{

char ch='B';

int n=ch;

printf("The ASCII code of the character %c is : %d\n",ch,n);

return 0;

}

OUTPUT

The ASCII code of the character B is : 66

c program to convert int to float point number

PROGRAM

#include <stdio.h>

#include <stdlib.h>

int main()

{

int n1=2598;

float n2=n1;

printf("The float value is : %.2f",n2);

return 0;

}

OUTPUT
The float value is: 2598.00

C program to check the given number is factor of first number or not

PROGRAM

#include <stdio.h>

#include <stdlib.h>

int main()

{

int n1,n2;

printf("Enter two numbers");

scanf("%d%d",&n1,&n2);

if(n1%n2==0)

printf("second number is factor of first number");

else

printf("second number is not factor of first number");

return 0;

}

OUTPUT

Enter two numbers 12 6

second number is factor of first number

30.12.20

C PROGRAM TO PERFORM ALL RELATIONAL OPERATORS AVAILABLE IN C

#include<stdio.h>

int main()

{

int m,n;

printf("Enter any two values");

scanf("%d%d",&m,&n);

if(m<n)

{

printf("%d is greater than %d",m,n);

}

else if(m<n)

{

printf("%d is less than %d",m,n);

}

else if(m==n)

{

printf("%d is equal to %d",m,n);

}

return 0;

OUTPUT:

Enter any two values 40 20

40 is greater than 20

C PROGRAM TO CHECK THE GIVEN YEAR IS LEAP YEAR OR NOT

#include <stdio.h>

#include <stdlib.h>

int main()

{

int year;

printf("enter a year");

scanf("%d",&year);

if(year%400==0)

{

printf("%d is a leap year",year);

}

else if(year%100==0)

{

printf("%d is not leap year",year);

}

else if(year%4==0)

{

printf("%d is a leap year",year);

}

else

{

printf("%d is not leap year");

}

return 0;

}

OUTPUT

Enter a year 2032

2032 is a leap year

C PROGRAM TO PERFORM ALL BITWISE OPERATORS AVAILABLE IN C

#include <stdio.h>

#include <stdlib.h>

int main()

{

int a,b;

int c=0;

printf("Enter a and b value ");

scanf("%d%d",&a,&b);

c=a&b;

printf("value of c is %d\n",c);

c=a|b;

printf("value of c is %d\n",c);

c=a^b;

printf("value of c is %d\n",c);

c=a<<2;

printf("value of c is %d\n",c);

c=a>>2;

printf("value of c is %d\n",c);

return 0;

}

OUTPUT

Enter a and b value 60 13

Value of c is 12

Value of c is 61

Value of c is 49

Value of c is 240

Value of c is 15

c program to perform all increment and decrement operators available in c

INCREMENT OPERATOR

#include <stdio.h>

#include <stdlib.h>

int main()

{

int i=1;

while(i<10)

{

printf("%d",i);

i++;

}

return 0;

}

OUTPUT

123456789

DECREMENT OPERATOR

#include <stdio.h>

#include <stdlib.h>

int main()

{

int i=20;

while(i>10)

{

printf("%d",i);

i--;

}

return 0;

}

OUTPUT

20191817161514131211

C PROGRAM TO PERFORM ALL ASSIGNMENT OPERATORS AVAILABLE in c

#include <stdio.h>

#include <stdlib.h>

int main()

{

int a,c;

printf("enter a value");

scanf("%d",&a);

c=a;

printf("value of c with operator = is %d\n",c);

c += a;

printf("value of c with operator += is %d\n",c);

c-=a;

printf("value of c with operator -= is %d\n",c);

c*=a;

printf("value of c with operator *= is %d\n",c);

c/=a;

printf("value of c with operator /= is %d\n",c);

c=200;

c%=a;

printf("value of c with operator %= is %d\n",c);

c<<=a;

printf("value of c with operator <<= is %d\n",c);

c>>=a;

printf("value of c with operator >>= is %d\n",c);

c&=a;

printf("value of c with operator &= is %d\n",c);

c^=a;

printf("value of c with operator ^= is %d\n",c);

c|=a;

printf("value of c with operator |= = is %d\n",c);

return 0;

}

OUTPUT

Enter a value 21

Value of c with operator = is 21

Value of c with operator += is 42

Value of c with operator -= is 21

Value of c with operator *= is 441

Value of c with operator /= is 21

Value of c with operator %= is 11

Value of c with operator <<= is 23068672

Value of c with operator >>= is 11

Value of c with operator &= is 1

Value of c with operator ^= is 20

Value of c with operator |= is 21

C PROGRAM TO PERFORM ALL LOGICAL OPERATORS AVAILABLE IN C

#include <stdio.h>

#include <stdlib.h>

int main()

{

int a,b,c;

printf("enter a and b values");

scanf("%d%d",&a,&b);

if(a&&b)

{

printf("condition 1 is true ");

}

if(a||b)

{

printf("condition 2 is true");

}

return 0;

}

OUTPUT

Enter a and b values 0 10

Condition 2 is true

C PROGRAM TO PRINT SIZE ,MINIMUM VALUE,MAXIMUM VALUE AND PRECISION VALUE OF THE FLOAT USING SIZEOF(),FLT_MIN,FLT_MAX AND FLT_DIG.

#include <stdio.h>

#include <float.h>

int main()

{

float a;

printf("the min value of float is %e\n",FLT_MIN);

printf("the max value of float is %e\n",FLT_MAX);

printf("the number of digits in the number is %e\n",FLT_DIG);

printf("the size of float is %lu\n",sizeof f(a));

return 0;

}

OUTPUT

the min value of float is 1.175494e-38

the max value of float is 3.402823e+38

the number of digits in the number is 3.402823e+38

the size of float is 4

c program to the largest of three numbers

#include<stdio.h>

int main()

{

int a,b,c;

printf("Enter three numbers");

scanf("%d%d%d",&a,&b,&c);

if(a>b)

{

if(a>b)

printf("%d is largest number",a);

else

printf("%d is largest number",c);

}

else

{

if(b>c)

printf("%d is the largest number",b);

else

printf("%d is the largest number",c);

}

return 0;

}

OUTPUT

enter three numbers 10 20 30

30 is the largest number

c program to check the given is positive or negative number

#include<stdio.h>

int main()

{

int a;

printf("Enter a number");

scanf("%d",&a);

if(a>0)

{

printf("Positive number");

}

else

{

printf("Negative numbers");

}

return 0;

}

OUTPUT

Enter a number -10

Negative number

c program to print the largest of two given numbers

#include<stdio.h>

int main()

{

int a,b;

printf("Enter two values);

scanf("%d%d",&a,&b);

if(a>b)

{

printf("%d is largest number",a);

}

else

{

printf("%d is largest number ",b);

}

return 0;

}

OUTPUT:

Enter two value 20 60

60 is largest number

c program of all arthmetic operators available in c

#include<stdio.h>

int main()

{

int a,b,add,sub,mul,div,mod;

printf("Enter a and b values):

scanf("%d%d",&a,&b);

add=a+b;

sub=a-b;

mul=a*b;

div=a/b;

mod=a%b;

printf("Add= %d\n",add);

printf("Sub= %d\n",sub);

printf("Mul= %d\n",mul);

printf("Div= %d\n",div);

printf("Mod= %d\n",mod);

return 0;

}

OUTPUT

Enter a and b values 40 20

Add=60

Sub=20

Mul=800

Div=2

Mod=0

c program to convert fahrenheit to celsius and celsius to fahrenheit

CELSIUS TO FAHRENHEIT:

#include<stdio.h>

int main()

{

float cen,fah;

printf("Enter temperature in centigrade scale:");

scanf("%f",&cen);

fah=9/5.0*cen+32;

printf("Equivalent fahrenheit scale value is %f",fah);

return 0;

}

OUTPUT

Enter temperature in centigrade 27.5

Equivalent fahrenheit scale value is 81.5

FAHRENHEIT TO CELSIUS

#include<stdio.h>

int main()

{

float cen,fah;

printf("Enter temperature in fahrenheit scale:");

scanf("%f",&fah);

cen=(fah-32)/1.8;

printf("Equivalent centigrade scale value is %f",cen);

return 0;

}

OUTPUT

Enter temperature in fahrenheit scale 32

Equivalent centigrade scale value is 0

c program to print the area and perimeter of the reactangle

PROGRAM

#include<stdio.h>

int main()

{

int l,b,area,perimeter;

printf("enter length and breadth of the rectangle");

scanf("%d%d",&l,&b);

area=l*b;

perimeter=2*(l+b);

printf("Area=%d,Perimeter =%d",area,perimeter");

return 0;

}

OUTPUT

enter length and breadth of the recatangle 3 2

Area=6,Perimeter=10

c program to print the size of the datatype using sizeof()

SWAPPING WITHOUT USING THIRD VARIABLE

PROGRAM:

#include<stdio.h>

int main()

{

printf("size of char =%d\n",sizeof(char));

printf("size of short =%d\n",sizeof(short));

printf("size of int=%d\n",sizeof(int));

printf("size of long =%d\n",sizeof(long));

printf("size of float =%d\n",sizeof(float));

printf("size of double =%d\n",sizeof(double));

return 0;

}

OUTPUT:

size of char=1

size of short=2

size of int=4

size of long=4

size of float=4

size of double=8

c program to swap two numbers with and without using third variable

SWAPPING WITHOUT USING THIRD VARIABLE

PROGRAM:

#include<stdio.h>

int main()

{

int a,b;

printf("Enter two values");

scanf("%d%d",&a,&b);

printf("Before Swap a=%d,b=%d",a,b);

{

a=a+b;

b=a-b;

a=a-b;

}

printf("After Swap a=%d,b=%d",a,b);

return 0;

}

OUTPUT:

Enter two values 30 5

Before Swap a=30, b=5

After Swap a=5,b=30

SWAPPING WITH USING THIRD VARIABLE

PROGRAM:

#include<stdio.h>

int main()

{

int a,b,c;

printf("Enter two values");

scanf("%d%d",&a,&b);

printf("Before Swap a=%d,b=%d",a,b);

{

c=a;

a=b;

b=c;

}

printf("After Swap a=%d,b=%d",a,b);

return 0;

}

OUTPUT:

Enter two values 30 5

Before Swap a=30, b=5

After Swap a=5,b=30

26.6.20

c program dynamic memory management

DYNAMIC MEMORY MANAGEMENT

void main()

{

int *a,n,i;

printf("How many numbers do u want to enter ");

scanf("%d",&n);

a=(int*)malloc(n*sizeof(int));

printf("Enter numbers:");

for(i=0;i<n;i++)

scanf("%d",a+i);

printf("the entered numbers are\n");

for(i=0;i<n;i++)

printf("%d\n",*(a+i));

free(a);

}

OUTPUT

How many numbers do u want to enter 5

Enter numbers

956

324

8562

0159

Entered numbers are

956

324

8562

159

c program using arrays

USING ARRAYS:

void main()

{

int a[100],n,i;

printf("How many numbers do u want to enter:");

scanf("%d",&n);

printf("Enter numbers:");

for(i=0;i<n;i++)

scanf("%d",&a[i]);

printf("The entered numbers are\n");

for(i=0;i<n;i++)

printf("%d\n",a[i]);

}

OUTPUT:

How many numbers do u want to enter:4

Enter numbers:23

The entered numbers are

call by address example 2

CALL BY ADRESSS EXAMPLE 2

void changeMe(int*a)

{

*a=72;

}

void main()

{

int a=145;

printf("Before :%d\n",a);

changeMe(&a);

printf("After : %d",a);

}

OUTPUT

Before:145

After:72

call by address /reference example 1

CALL BY ADDRESS/REFERENCE EXAMPLE 1:

void swap(int*a,int *b)

{

int t;

t=*a;

*a=*b;

*b=t;

}

void main()

{

int a=10,b=20;

printf("Before swapping : %d,%d\n",a,b);

swap(&a,&b);

printf("After swapping : %d,%d\n",a,b);

}

OUTPUT

Before swapping 10,20

After swapping 20,10

call by value

CALL BY VALUE:

void swap(int a,int b)

{

int t;

t=a;

a=b;b=t;

}

void main()

{

int a=10,b=20;

printf("Before swapping : %d,%d\n",a,b);

swap(a,b);

printf("After swapping : %d,%d\n",a,b);

}

OUTPUT

Before swapping : 10,20

After swapping :10,20

Explanation :the a,b in main() and swap() functions are different....

So the changes made to a and b in the swap() function has no affect on a and b of main().

c program on arthmetic example 2

POINTER ARTHMETIC EXAMPLE 2

void main()

{

int a=10,b=20;

int*p=&a,*q=&b;

printf("%u,%u\n",p,q);

printf("%u\n",p+2);

printf("%u\n",p-2);

/* printf("%u\n",p*2); */

printf("%u\n",q-p);

/*printf("%u\n",p+q); illegal */

}

OUTPUT

6356724,6356720

6356732

6356716

4294967295

c program for pointer arthmetic

POINTER ARTHMETIC

void main()

{

int a=15;

char ch='x';

float f=9.7;

int*p=&a;

char*q=&ch;

float*r=&f;

printf("Before incremention:%d,%c,%f\n",a,ch,f);

a++;

ch++;

f++;

printf("after incremention:%d,%c,%f\n\n",a,ch,f);

printf("Before incremention:%d,%c,%f\n",p,q,r);

p++;

q++;

r++;

printf("after incremention:%d,%c,%f\n",p,q,r);

}

Before incrementation: 15,x,9.7

After incrementation: 16,y,10.7

Before incrementation:100,200,300

After incrementation: 102,201,304

C program for the necessary of different pointers

WHY DIFFERENT TYPES FOR POINTERS

void main()

{

int a=4873;

char ch='p';

float f=2173.964;

int *p;

p=&a;

printf("%u\n",*p);

p=&ch;

printf("u\n",*p);

p=&f;

printf("%u",*p);

}

OUTPUT

4873

garbage

c program for address of and value at operators example 2

ADDRESS OF AND VALUE AT OPERATORS EXAMPLE 2

void main()

{

int a=35;

int*p;

int**q;

p=&a;

q=&p;

printf("%u\n",p);

printf("%u\n",q);

printf("u\n",*q);

printf("u\n",*p);

/* printf ("%u\n",*a); illegal */

printf("%u\n",**q);

/* printf("%u\n",**p); illegal */

printf("%u",*&p);

}

OUTPUT

6356728

6356724

6356728

C program for size of a pointer

SIZE OF A POINTER

void main()

{

int a=10;

char ch='x';

float f=9.7;

int *p=&a;

char*q=&ch;

float*r=&f;

printf("%d,%d,%d\n",sizeof(a),sizeof(ch),sizeof(f));

printf("%d,%d,%d",sizeof(p),sizeof(q),sizeof(r));

}

OUTPUT

4,1,4

2,2,2

c program for address of and value at operators

ADDRESS OF AND VALUE AT OPERATORS

void main()

{

int a=35;

int *p;

p=&a;

printf("%u\n",a);

printf("%u\n",&a);

printf("%u\n",p);

printf("%u\n",&p);

printf("%u\n",*p);

}

OUTPUT

6356732

6353732

6357328

c program for to print an address

HOW TO PRINT AN ADDRESS

void main()

{

int a=10;

printf("%d\n",a);

printf("%u",&a);

}

OUTPUT

6356732

19.6.20

c global variable

GLOBAL VARIABLE:

int i=78;

void fun1()

{

printf("%d\n",i);

}

void fun2()

{

int i= 45;

printf("%d\n",i);

}

void main()

{

printf("%d\n",i);

fun1();

fun2();

}

OUTPUT:

c register storage class specifier

void main()

{

for(i=1;i<=5;i++)

printf("I LOVE INDIA.\n");

}

OUTPUT

I LOVE INDIA.

c static storage class

STATIC STORAGE CLASS :

void fun()

{

static int a=10;

printf("%d\n",a);

a++;

}

void main()

{

fun();

}

OUTPUT:

c auto storage class

AUTO STORAGE CLASS

void fun()

{

int a=10;

printf("%d\n",a);

a++;

}

void main()

{

fun();

}

OUTPUT

c macro: where we can access a variable

WHERE WE CAN ACCESS A VARIABLE...

void main()

{

int a=10;

printf("%d\n",a);

{

int b=20;

printf("%d,%d\n",a,b);

}

printf("%d,%d",a,b); /*error: b not accesible */

}

EXPALNATION:

A variable defined in a block can be accessed in that block and all its inner blocks (i.r., a variable defined in a block cannot be accessed in its outer block).It is called as the scope of a variable .

c macro :where to define a variable

WHERE TO DEFINE A VARIABLE

void main()

{

int a=10;

printf("%d\n",a);

{

int b=20;

printf("%d",b);

}

OUTPUT:

c program enclosing the variable in the macro expansion

IMPORTANCE OF ENCLOSING THE VARIABLES IN THE MACRO EXPANSION WITHIN PARENTHESIS

#include<math.h>

#define MAC(x,y)sqrt(x*x+y*y)

float fun(int x,int y)

{

return sqrt(x*x+y*y);

}

void main()

{

int a=3,b=4;

float p,q,r,s;

p=fun(a,b);

q=fun(a+1,b+1);

r=MAC(a,b);

s=MAC(a+1,b+1);

printf("Using functions:%f,%f\n",p,q);

printf("Using macros:%f,%f",r,s);

}

OUTPUT

Using functions: 5.0000000,6.403124

Using macros 5.0000000,4.000000

c program on name less blocks

PROGRAM ON NAMELESS BLOCKS

void main()

{

int a=10;

printf("%d\n",a);

{

printf("Stella Maris school -Marripalem");

}

OUTPUT

Stella Maris School-Marripalem

c program on macros with arguments

PROGRAM ON MACROS WITH ARGUMENTS

#define PI 3.142857

#define AREA(x)PI*x*x

void main()

{

float r,a;

printf("Enter radius of a circle");

scanf("%f",&r);

a=AREA(r);

printf("AREA of the circle=%f",a);

}

OUTPUT

Enter radius of a circle 45

AREA of the circle6364.285645

program on macros with arguments

PROGRAM ON MACROS WITH ARGUMENTS

#define SUM(a,b) a+b

void main()

{

int a,b;

printf("Enter two numbers");

scanf("%d%d",&a,&b);

printf("Sum=%d",SUM(a,b));

}

OUTPUT:

Enter two numbers:30 20

Sum=50

program on macros example 3

PROGRAM FOR MACROS EXAMPLE 3

#define PI 3.142857

void main()

{

float r,a;

printf("Enter radius of a circle:");

scanf("%f",&r);

a=PI*r*r;

printf("Area of circle:%f",a);

}

OUTPUT:

Enter radius of circle: 3

Area of circle: 285713

program on macros example 2

PROGRAM FOR MACROS 2

#define TRUE 1

void main()

{

while(TRUE)

{

printf("This loop runs infinite times\n");

}

OUTPUT

This loop runs infinite times

This loop runs infinite times.....................

program on macros example 1

PROGRAM FOR MACROS EXAMPLE 1

#define NULL 0

void main()

{

char st[20];

int i;

puts("Enter a string:");

gets(st);

for(i=0;st[i]!=NULL;i++);

printf("length=%d",i);

}

OUTPUT:

Enter a string:

Sirisha

Length=7

9.4.20

string sorting

STRING SORTING

#include<stdio.h>

#include<strings.h>

int main()

{

char st[10][30],t[30];

int n,i,j,flag;

printf("How many strings do u want to enter :");

scanf("%d",&n);

printf("Enter strings:");

for(i=0;i<n;i++)

{

fflush(stdin);

gets(st[i]);

}

for(i=0;i<n-1;i++)

{

flag=1;

for(j=0;j<n-1-i;j++)

{

if(strcmp(st[j],st[j+1])>0)

{

strcpy(t,st[j]);

strcpy(st[j],st[j+1]);

strcpy(st[j+1],t);

flag=0;

}

if(flag==1)

break;

}

printf("In alphabetical order\n");

for(i=0;i<n;i++)

printf("%s\n",st[i]);

return 0;

}

OUTPUT

How many strings do u want to enter 4

Sirisha

Dali

Deepthi

Rama

In alphabetical order

Dali

Deepthi

Rama

Sirisha