plz help me

Subject: plz help me Tue Jun 10, 2008 8:40 pm

plz help me complete these programs
1)wap to display the following output
1 1
12 3
123 6
1234 10
12345 15

2)
*
**
***
****
***
**
*

3)WAP to print all possible combinations of any three digit number
for eg.123 would be
123,132,231,,,,,,so on

Active member

second one is the easiest

class ques2
{
void main(int n)//take n as parameter if want
{
for(int c=1;c<=n;c++)
{
for (int d=1;d<=c;d++)
{
System.out.print("*");
}
System.out.println(" ");
}

for(int e=n-1;e>=1;e--)
{
for (int f=1;f<=e;f++)
{
System.out.print("*");
}
System.out.println(" ");
}
}
}

i have tested it in blueJ
it is working properly

//i will answer other ques. soon

Active member

Ans. of ques. 1

this program will print
1 1
12 3
123 6
1234 10
12345 15

when you will give value of parameter n as 5

I have tested this program ...

class ques1
{
void main(int n)
{
int s=0;
for(int c=1;c<=n;c++)
{
for (int d=1;d<=c;d++)
{
s=s+d;
System.out.print(d);
}
System.out.print(" "+ s);
s=0;
System.out.println(" ");
}
}

}

study

Active member

plz try out dis one 4 me......wap to calculate the area, perimeter & diagonal of a rectangle using 3 separate functions.....a nice & simple 1 plz... Rolling Eyes

plz post the program asap...

Active member

hey....is there no1 to help me?? Question

Active member

ohk here's d program wid a biot of short forms for d long syntaxes
import java.io.*
class test
{
public static l,b;
public static void area
{
int c;
c=l*b;
System.out.println("area is "+c);
}
public static void perimeter
{
int p;
p=2*(l+b);
System.out.println("perimeter is "+p);
}
public static void diagonal
{
float d;
d=math.sqrt((l*l)+(b*b));
System.out.println("diagonal is "+d);
}
public static void main (String args[])throws IOException
{
ISR read=new ISR(System.in);
BR in=new BR(read);
int l,b;
System.out.println("enter l n b");
l=Integer.parseInt (in.readLine());
b=Integer.parseInt(in.readLine());
area();
perimeter();
diagonal();
}}
thats done

Active member

thnx apurva!!...

Active member

ur welcum dear