Java basic Practical Programming (Part-2)

Question(1-5)

Question 6 ):- Enter Two No and Find Even No.

import java.util.*;
class Even
{
public static void main(String args[])
{
EvenNo();
}
static void EvenNo()
{
int i,n1,n2;
Scanner s1=new Scanner(System.in);
System.out.println("Enter 1 No:");
n1=s1.nextInt();
System.out.println("Enter 2 No:");
n2=s1.nextInt();
for(i=n1;i<n2;i++)
{
if(i%2==0)
{
System.out.println("NO is Even:"+i);
}
}
}
}

Question 7 ):- Using Function odd even no.

import java.util.*;

class Even

{
public static void main(String args[])
{
int No1,No2;
Scanner s1=new Scanner(System.in);
System.out.println("Enter a no:");
No1=s1.nextInt();
System.out.println("Enter a no:");
No2=s1.nextInt();
printEven(No1,No2);
}
static boolean isEven(int no)
{
if(no%2==0)
{
return true;
}
else
{
return false;
}
}
static void printEven(int No1,int No2)
{
for(int cntr=No1;cntr<=No2;cntr++)
{
boolean result=isEven(cntr);
if(result==true)
{
System.out.println("No is Even:"+cntr);
}
}
}
}

Question 8 ):- Enter RollNo,Name,Marks Of 5 Subject And Fine Sum,avg and Total. and Avg Must be in like:-12.5.

import java.util.*;

class Student
{
int rollNo;
String Name;//class che Atle String no S capital che
int marks1,marks2,marks3,marks4,marks5,sum=0,total=0;
float avg;
void getdata()
{
Scanner s1=new Scanner(System.in);
System.out.println("Enter a Rollno:");
rollNo=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a Name:");
Name=s1.nextLine();
s1=new Scanner(System.in);
System.out.println("Enter a Oop marks:");
marks1=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a rdbms marks:");
marks2=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a Python marks:");
marks3=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a cc marks:");
marks4=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a cs marks:");
marks5=s1.nextInt();
sum=(marks1+marks2+marks3+marks4+marks5);
avg=sum/5;
}
void putdata()
{
System.out.println("*************************");
System.out.println("RollNO:"+rollNo);
System.out.println("Name is:"+Name);
System.out.println("Oop:"+marks1);
System.out.println("Rdbms:"+marks2);
System.out.println("Python:"+marks3);
System.out.println("cc:"+marks4);
System.out.println("cs:"+marks5);
System.out.println("sum is:"+sum);
System.out.println("avg is:"+avg+"%");
System.out.println("#########################");
}
}
class StudentDetails
{
public static void main(String args[])
{
Student j=new Student();
j.getdata();
j.putdata();
}
}

Question 9 ):-Inheritance Demo Using Emp_id,name and Array List.

import java.util.*;
class Employee
{
String empId;
String name;
Employee()
{
empId="emp000";
name="none";
}
Employee(String id,String tmpname)
{
empId=id;
name=tmpname;
}
void getData()
{
Scanner scn = new Scanner(System.in);
System.out.println("Enter a Employee ID :-");
empId=scn.nextLine();
System.out.println("Enter a Employee Name :-");
name=scn.nextLine();
}
void printData()
{
System.out.println("Employee Id :- "+empId);
System.out.println("Employee Name :- "+name);
}
}
class Programmer extends Employee
String proId;
String language;
Programmer()
{
proId="pro000";
language="none";
}
Programmer(String tmpid,String templen)
{
proId=tmpid;
language=templen;
}
void getData()
{
super.getData();
Scanner scn = new Scanner(System.in);
System.out.println("Enter a Programmer ID :-");
proId=scn.nextLine();
System.out.println("Enter a Programmer language :-");
language=scn.nextLine();
}
void printData()
{
super.printData();
System.out.println("Programmer ID :- "+proId);
System.out.println("Programmer language :- "+language);
}
}
class InheritanceDemo
{
public static void main(String[] args) 
{
//ArrayList<Employee> empList = new ArrayList<Employee>();
ArrayList<Programmer> progList = new ArrayList<Programmer>();
while(true)
{
Scanner scn = new Scanner(System.in);
//System.out.println("1.Add Employee");
System.out.println("1.Add Programmer");
System.out.println("2.Display Data");
System.out.println("3.Exit");
System.out.println("Enter the Choice :-");
int choice = scn.nextInt();
switch(choice)
{
case 1:
{
Programmer proObj = new Programmer();
proObj.getData();
progList.add(proObj);
break;
}
case 2:
{
for(int i=0;i<progList.size();i++)
{
Programmer proObj = progList.get(i);
proObj.printData();
}
break;
}
case 3:
{
System.exit(0);
}
}
}
}
}

Question 10 ):- Enter second And it gives Output As Hours And Min. Using Constructor 

import java.util.*;
class Time
{
int hour,min,sec;
Time(int n)//Constructor
{
hour=n;
min=n;
sec=n;
}
void getdata()
{
Scanner s1=new Scanner(System.in);
System.out.println("Enter a hours:");
hour=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a min:");
min=s1.nextInt();
s1=new Scanner(System.in);
System.out.println("Enter a sec:");
sec=s1.nextInt();
}
void printdata()
{
System.out.println("*****************");
System.out.println("Hours is:"+hour+"min is:"+min+"sec is:"+sec);
}
}
class A
{
public static void main(String args[])
{
Time t1=new Time(10);
//t1.getdata();
t1.printdata();
}
}

Next Programs is coming Soon.... so stay Connected with us ThankYou ✌✌ .

Java All Topics

Don't Forget to Share your Opinion About This post in Comment Section, Your One Comment Will Not only Make Our day But will Make our Year. And Do mention Of you have any ideas for our Blog:)