Basic Java Programming
Basic Operation
class Arithop
{
public static void main (String args[])
{
System.out.println("ARITHMETIC OPERATOR:\n");
int a=10,b=4;
System.out.println("a+b="+(a+b));
System.out.println("a-b="+(a-b));
System.out.println("a*b="+(a*b));
System.out.println("a/b="+(a/b));
System.out.println("a%b="+(a%b));
}}
Using Above programs specify how to develop the basic arithmetic operator in java.
import java.io.*;
import java.io.DataInputStream;
class Armstrong
{
public static void main(String args[])
{
int no,sum=0,rem;
DataInputStream in=new DataInputStream(System.in) ;
try
{
System.out.println("Enter the number:");
no=Integer.parseInt(in.readLine());
rem=no%10;
sum=sum+(rem*rem*rem);
no=no/10;
if(sum==no)
{
System.out.println("No is armstrong");
}
else
System.out.println("No is not an armstrong no");
}
catch(Exception e)
{}
}} Program For Finding Armstrong number.import java.io.*;class Account{int acc_no;String cust_name;DataInputStream d=new DataInputStream(System.in);void getdata(){try{System.out.print("Enter the cust_name :");cust_name=d.readLine();System.out.print("Enter the acc_no :");acc_no=Integer.parseInt(d.readLine());}catch(Exception e){System.out.println("IO Error"+e);}}void display(){System.out.println("Name :"+cust_name);System.out.println("Acc_no :"+acc_no);}}class Saving_Acc extends Account{float min_bal,saving_bal;DataInputStream d=new DataInputStream(System.in);void getdata(){super.getdata();try{System.out.println("Enter the saving balance :");saving_bal=Float.parseFloat(d.readLine());System.out.println("Enter the minimum balance :");min_bal=Float.parseFloat(d.readLine());}catch(Exception e){System.out.println("IO Error");}}void display(){super.display();System.out.println("Minimum balance="+min_bal);System.out.println("Saving balance="+saving_bal);}}class Acc_Details extends Saving_Acc{float deposit,withdraw;void deposit(){DataInputStream d=new DataInputStream(System.in);try{System.out.println("Enter amount to deposit : ");deposit = Integer.parseInt(d.readLine());saving_bal=saving_bal+deposit;display();}catch(Exception e){System.out.println("IO Error");}}void withdraw(){DataInputStream d = new DataInputStream(System.in);try{System.out.println("\nEnter amount to withdraw : ");withdraw=Integer.parseInt(d.readLine());if(saving_bal-withdraw>=min_bal)saving_bal=saving_bal-withdraw;elseSystem.out.println("You cannot withdraw....");display();}catch(Exception e) {System.out.println("IO Error");}}}class bank{public static void main(String args[]){int choice;int ans;Acc_Details a=new Acc_Details();a.getdata();{DataInputStream d =new DataInputStream(System.in);try{do{System.out.println("\n 1. Deposite");System.out.println("\n 2. Withdraw");System.out.println("Enter your choice(1/2) :");choice = Integer.parseInt(d.readLine());if(choice==1)a.deposit();if(choice==2)a.withdraw();System.out.println("\nDo you want to continue the transaction?(1:yes /0:No)");ans=Integer.parseInt(d.readLine());}while(ans==1);}catch(Exception e) { System.out.println("I/O Error");}}}}Program For Banking System.
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Vector
vector is a basic component in java. it is just like a Array[] in java programming.
it is advanced version of Array[].
We able to change the vector length after its initialization which is not possible in the Array[].
import java.util.*;
class Vector
{
public static void main(String args[])
{
Vector v=new Vector();
int a,len;
len=args.length;
for(int i=0;i<len;i++)
{
a=Integer.parseInt(args[i]);
v.addElement(new Integer(a));
}
int l=v.size();
System.out.print("Element of vector is = ");
for(int i=0;i<l;i++)
{
System.out.print(v.elementAt(i)+" ");
}
}
}