BSC IT PRACTICALS: JAVA PROGRAMS

Showing posts with label JAVA PROGRAMS. Show all posts

Friday, February 9, 2018

Designed a class SortData that contains the method asec() and desc() in java

SME4 February 09, 2018 3

import java.util.*;
class prac4A
{
Scanner input=new Scanner(System.in);
int num,i;
int arr[];
int temp=0;
public void getdata()
{
System.out.print("Enter the size of array: ");
num=input.nextInt();
arr=new int[num];
System.out.print("Enter the number: ");
for( i=0;i<num;i++)
{
arr[i]=input.nextInt();
}
}
void putdata()
{
System.out.print("Given numbers are: ");
for(i=0;i<num;i++)
{
System.out.println(arr[i]);
}
}
void asce()
{
for(i=0;i<num;i++)
{
for(int j=i+1;j<num;j++)
{
if(arr[i]>arr[j])
{
temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
System.out.print("Ascending order of number are: ");
for(int i=0;i<num;i++)
{
System.out.println(arr[i]);
}
}
void desc()
{
for(i=0;i<num;i++)
{
for(int j=i+1;j<num;j++)
{
if(arr[i]<arr[j])
{
temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
System.out.print("Descending order of number are: ");
for(int i=0;i<num;i++)
{
System.out.println(arr[i]);
}
}
public static void main(String args[])
{
prac4A ob=new prac4A();
ob.getdata();
ob.putdata();
ob.asce();
ob.desc();
}
}

Write a java program to demonstrate the implementation of abstract class.

SME4 February 09, 2018 1

import java.util.Scanner;
abstract class test
{
abstract void get();
}
class test1 extends test
{
void get()
{
int a,b;
Scanner ob=new Scanner(System.in);
System.out.print("Enter 1st Number: ");
a=ob.nextInt();
System.out.println("Enter 2st Number: ");
b=ob.nextInt();
System.out.println("Addition is: "+(a+b));
}
}
class prac4C
{
public static void main(String args[])
{
test1 obj=new test1();
obj.get();
}
}

Designed a class that demonstrates the use of constructor and destructor in java

SME4 February 09, 2018 32

class xyz
{
xyz()
{
System.out.println("Constructor method........");
}
protected void finalize()
{
System.out.print("Garbage Collected.....");
}
}
class prac4B
{
public static void main(String args[])
{
xyz ob=new xyz();
ob=null;
System.gc();
}
}

Friday, January 19, 2018

Java function that calculates the sum of digits for a given char array consisting of the digits '0' to '9'. The function should return the digit sum as a long value

SME4 January 19, 2018 0

CODE:

import java.util.*;
class prac3B
{
public static void main(String args[])
{
Scanner ob=new Scanner(System.in);
System.out.print("Enter the any string: ");
String s=ob.nextLine();
count(s);
}

public static void count(String str)
{
int sum=0;
int d=0;
char ch[]=str.toCharArray();
for(int i=0;i<str.length();i++)
{
if(Character.isDigit(ch[i]))
{
sum+=Character.getNumericValue(ch[i]);
}

}
System.out.println("Your addtion is: "+sum);
}
}

Find the smallest and largest element from the array in java

SME4 January 19, 2018 0

CODE:

class prac3C
{
public static void main(String args[])
{

int num[]=new int[]{10,20,30,5};
int s=num[0];
int l=num[0];
for(int i=0;i<num.length;i++)
{
if(l<num[i])
{
l=num[i];
}
else
{
s=num[i];
}
}
System.out.println("Largest Number are:"+l);
System.out.println("Smallest number are: "+s);

}}

Java program to count the letters, spaces, numbers and other characters of an input string

SME4 January 19, 2018 1

CODE:
import java.util.*;
class prac3A
{
public static void main(String args[])
{
Scanner input=new Scanner(System.in);
System.out.print("Enter A String: ");
String str=input.nextLine();
int letter=0,space=0,digit=0,other=0;
char ch[]=str.toCharArray();
for(int i=0;i<str.length();i++)
{
if(Character.isLetter(ch[i]))
{
letter++;
}
else if(Character.isDigit(ch[i]))
{
digit++;
}
else if(Character.isSpaceChar(ch[i]))
{
space++;
}
else{
other++;
}
}
System.out.println("Letter are: "+letter);
System.out.println("Space are: "+space);
System.out.println("Digit are: "+digit);
System.out.println("Other: "+other);
}

}

Monday, January 15, 2018

Java program to reverse a string.

JAVA PROGRAMS January 15, 2018 0

CODE:

import java.util.*;

class prac2C

{

String rev="";

public String reversestring(String str)

{

if(str.length()==1)

{

return str;

}

else

{

rev+=str.charAt(str.length()-1)+reversestring(str.substring(0,str.length()-1));

return rev;

}

public static void main(String args[])

{

Scanner input=new Scanner(System.in);

prac2C ob=new prac2C();

System.out.print("Enter the String ");

String str=input.nextLine();

System.out.print("Result is "+ob.reversestring(str));

}}

Java program to convert a decimal number to binary number and vice versa.

JAVA PROGRAMS January 15, 2018 0

CODE:

import java.util.*;

class prac2B

{

public static void main(String args[])

{

Scanner input=new Scanner(System.in);

System.out.print("Enter the Decimal number ");

int no=input.nextInt();

int i=0;

int arr[]=new int[100];

while(no>0)

{

arr[i++]=no%2;

no=no/2;

}

System.out.print("Binary number are: ");

for(int j=i-1;j>=0;j--)

{

System.out.print(arr[j]);

}

Java program to add two binary numbers.

JAVA PROGRAMS January 15, 2018 0

CODE:

import java.util.Scanner;

class prac2A

{

public static void main(String[] args)

{

long binary1, binary2;

int i = 0, remainder = 0;

int[] sum = new int[20];

Scanner in = new Scanner(System.in);

System.out.print("Input first binary number: ");

binary1 = in.nextLong();

System.out.print("Input second binary number: ");

binary2 = in.nextLong();

while (binary1 != 0 || binary2 != 0)

{

sum[i++] = (int)((binary1 % 10 + binary2 % 10 + remainder) % 2);

remainder = (int)((binary1 % 10 + binary2 % 10 + remainder) / 2);

binary1 = binary1 / 10;

binary2 = binary2 / 10;

}

if (remainder != 0)

{

sum[i++] = remainder;

}

--i;

System.out.print("Sum of two binary numbers: ");

while (i >= 0)

{

System.out.print(sum[i--]);

}

System.out.print("\n");

}

Java program to print the area and perimeter of a circle.

JAVA PROGRAMS January 15, 2018 0

CODE:

import java.util.*;

import java.lang.Math.*;

class prac1C

{

public static void main(String args[])

{

double r,perimeter,Area;

Scanner ob=new Scanner(System.in);

System.out.print("Enter the Radius of Circle: ");

r=ob.nextDouble();

perimeter =2*Math.PI*r;

Area=Math.PI*r*r;

System.out.println("Perimeter of Circle is: "+perimeter);

System.out.println("Area of Circle is: "+Area);

}

Java program to display the following pattern.

JAVA PROGRAMS January 15, 2018 0

CODE:

class prac1B

{ public static void main(String args[])

{

int i,j;

for(i=5;i>=1;i--)

{

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

{

System.out.print("*");

}

System.out.println(" ");

}

Java program that takes a number as input and prints its multiplication table upto 10.

JAVA PROGRAMS January 15, 2018 0

CODE:

import java.util.*;

class prac1A

{

public static void main(String ar[])

{

int no,s=0,i;

Scanner ob=new Scanner(System.in);

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

no=ob.nextInt();

for(i=1;i<=10;i++)

{

s=no*i;

System.out.println(no+"*"+i+"= "+s);

}

} }

BSC IT PRACTICALS

Friday, February 9, 2018

Designed a class SortData that contains the method asec() and desc() in java

Write a java program to demonstrate the implementation of abstract class.

Designed a class that demonstrates the use of constructor and destructor in java

Friday, January 19, 2018

Java function that calculates the sum of digits for a given char array consisting of the digits '0' to '9'. The function should return the digit sum as a long value

Find the smallest and largest element from the array in java

Java program to count the letters, spaces, numbers and other characters of an input string

Monday, January 15, 2018

Java program to reverse a string.

Java program to convert a decimal number to binary number and vice versa.

Java program to add two binary numbers.

Java program to print the area and perimeter of a circle.

Java program to display the following pattern.

Java program that takes a number as input and prints its multiplication table upto 10.

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