elements. (use command line arguments)
Solution:
class PrNo
{
public static void main (String[] args)
{
int size = args.length;
int[] array = new int [size];
for(int i=0; i<size; i++)
{
array[i] = Integer.parseInt(args[i]);
}
for(int i=0; i<array.length; i++)
{
boolean isPrime = true;
for (int j=2; j<array[i]; j++)
{
if(array[i]%j==0)
{
isPrime = false;
break;
}
}
if(isPrime)
System.out.println(array[i] + " are the prime numbers in the array ");
}
}
}
Slip 1_2: Define an abstract class Staff with protected members id and name. Define a parameterized
constructor. Define one subclass OfficeStaff with member department. Create n objects of
OfficeStaff and display all details.
Solution:
import java.util.*;
abstract class Staff
{
protected int id;
protected String name;
public Staff(int id,String name)
{
this.id=id;
this.name=name;
}
}
class OfficeStaff extends Staff
{
String dept;
OfficeStaff(int id,String name,String dept)
{
super(id,name);
this.dept=dept;
}
public void display()
{
System.out.println("ID :"+id+" Name :"+name+" Department :"+dept);
}
public static void main(String args[])
{
int n,id;
String name,dept;
Scanner sc=new Scanner(System.in);
System.out.println("How many staff members?");
n=sc.nextInt();
OfficeStaff ob[]=new OfficeStaff[n];
System.out.println("Enter details of "+n+" staff");
for(int i=0;i<n;i++)
{
System.out.println("Enter id,name, department");
id=sc.nextInt();
name=sc.next();
dept=sc.next();
ob[i]=new OfficeStaff(id,name,dept);
}
System.out.println("Entered Details are\n");
for(int i=0;i<n;i++)
{
ob[i].display();
}
}
}
-----------------------------------
Slip2_1: Write a program to read the First Name and Last Name of a person, his weight and
height using command line arguments. Calculate the BMI Index which is defined as the
individual's body mass divided by the square of their height.
(Hint : BMI = Wts. In kgs / (ht)2
// body mass index
class BM {
public static void main(String args[]) {
String fname = args[0];
String lname = args[1];
double weight = Double.parseDouble(args[2]);
double height = Double.parseDouble(args[3]);
double BMI = weight / (height * height);
System.out.println("First name is:" +fname);
System.out.println("Last Name is:" + lname);
System.out.println("weight is:" + weight);
System.out.println("height is:"+ height);
System.out.println("The Body Mass Index (BMI) is " + BMI + " kg/m2");
}
}
Slip2_2: Define a class CricketPlayer (name,no_of_innings,no_of_times_notout, totatruns,
bat_avg). Create an array of n player objects .Calculate the batting average for each player
using static method avg(). Define a static sort method which sorts the array on the basis of
average. Display the player details in sorted order.
import java.io.*;
class Cricket {
String name;
int inning, tofnotout, totalruns;
float batavg;
public Cricket(){
name=null;
inning=0;
tofnotout=0;
totalruns=0;
batavg=0;
}
public void get() throws IOException{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the name, no of innings, no of times not out, total runs: ");
name=br.readLine();
inning=Integer.parseInt(br.readLine());
tofnotout=Integer.parseInt(br.readLine());
totalruns=Integer.parseInt(br.readLine());
}
public void put(){
System.out.println("Name="+name);
System.out.println("no of innings="+inning);
System.out.println("no times notout="+tofnotout);
System.out.println("total runs="+totalruns);
System.out.println("bat avg="+batavg);
}
static void avg(int n, Cricket c[]){
try{
for(int i=0;i<n;i++){
c[i].batavg=c[i].totalruns/c[i].inning;
}
}catch(ArithmeticException e){
System.out.println("Invalid arg");
}
}
static void sort(int n, Cricket c[]){
String temp1;
int temp2,temp3,temp4;
float temp5;
for(int i=0;i<n;i++){
for(int j=i+1;j<n;j++){
if(c[i].batavg<c[j].batavg){
temp1=c[i].name;
c[i].name=c[j].name;
c[j].name=temp1;
temp2=c[i].inning;
c[i].inning=c[j].inning;
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c[j].inning=temp2;
temp3=c[i].tofnotout;
c[i].tofnotout=c[j].tofnotout;
c[j].tofnotout=temp3;
temp4=c[i].totalruns;
c[i].totalruns=c[j].totalruns;
c[j].totalruns=temp4;
temp5=c[i].batavg;
c[i].batavg=c[j].batavg;
c[j].batavg=temp5;
}
}
}
}
}
class Name {
public static void main(String args[])throws IOException{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the limit:");
int n=Integer.parseInt(br.readLine());
Cricket c[]=new Cricket[n];
for(int i=0;i<n;i++){
c[i]=new Cricket();
c[i].get();
}
Cricket.avg(n,c);
Cricket.sort(n, c);
for(int i=0;i<n;i++){
c[i].put();
}
}
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