These codes are implemented by Iti Dixit from Banasthali University
## save this class inside Secret.java file ##
## this code is about to show or hide a particular number in a given range
import java.util.Scanner;
public class Secret
{
int start,end,number,check;
Secret(int start,int end,int number,int check)
{
this.start=start;
this.end=end;
this.number=number;
this.check=check;
}
void printNumbers()
{
if(check==0)
{
System.out.println("Numbers which do not contain "+number+" are as follows:");
for(int i=start;i<=end;i++)
{
int p=i,flag=0;
while(p!=0)
{
int r=p%10;
if(r==number)
{
flag=1;
break;
}
p/=10;
}
if(flag==0)
System.out.println(i);
}
}
else if (check==1)
{
System.out.println("Numbers which contain "+number+" are as follows:");
for(int i=start;i<=end;i++)
{
int p=i,flag=0;
while(p!=0)
{
int r=p%10;
if(r==number)
{
flag=1;
break;
}
p/=10;
}
if(flag==1) {
System.out.println(i);
}
}
}
else
System.out.println("INAVLID");
}
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
System.out.println("Enter the values of start,end,number and check :");
int st=sc.nextInt();
int en=sc.nextInt();
int num=sc.nextInt();
int ch=sc.nextInt();
Secret s=new Secret(st,en,num,ch);
s.printNumbers();
}
}
======================================================
## save this class inside Square.java file ##
## this code is about learning constructors as well as getting area of square
## this code is about learning constructors as well as getting area of square
public class Square
{
float side;
// define a no argument constructor
Square()
{
side=1.07f;
}
// define a parameterized constructor
Square(float side)
{
this.side=side;
}
void printSide()
{
System.out.println("SIDE = "+side);
}
void showArea()
{
System.out.println("AREA = "+(side*side));
}
public static void main(String args[])
{
// create object by using no arg constructor
Square s1=new Square();
// call the methods
s1.printSide();
s1.showArea();
// create object by using parameterized constructor
Square s2=new Square(2.98f);
s2.printSide();
s2.showArea();
// create object by using parameterized constructor
Square s3=new Square(3.25f);
s3.printSide();
s3.showArea();
}
}
======================================================
## save this class inside CheckTemperature.java file ##
## this code is about learning constructors as well as converting the temprature from Fahrenheit to centigrade and vice versa
## this code is about learning constructors as well as converting the temprature from Fahrenheit to centigrade and vice versa
public class CheckTemperature
{
float F,C;
// define a parameterized constructor
CheckTemperature(float F,float C)
{
this.F=F;
this.C=C;
}
void F2C()
{
float c=(5*(F-32))/9;
System.out.println("TEMEPERATURE IN CELSIUS = "+c);
}
void C2F()
{
float a=((9*C)/5)+32;
System.out.println("TEMPERATURE IN FAHRENHEIT = "+a);
}
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
System.out.println("Enter temperature in fahrenheit : ");
float a=sc.nextFloat();
System.out.println("Enter temperature in celsius : ");
float c=sc.nextFloat();
// call parameterized constructor and pass values inside it
CheckTemperature ct=new CheckTemperature(a,c);
System.out.println("ENTER YOUR CHOICE : \n 1.C to F \n 2. F to C");
int n=sc.nextInt();
switch(n)
{
case 1:
ct.C2F();
break;
case 2:
ct.F2C();
break;
default:
System.out.println("INVALID CHOICE");
}
}
}
Nice its important
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