Contoh Perulangan dan Output

SUBSTANSI :

1.     for
2.     do .. while
3.     while
4.     Kombinasi for dan do .. while
5.     Membuat Bidang ( Perulangan dan Percabangan - > switch)

1. Perulangan Menggunakan "for"1. Perulangan Menggunakan "for"

 Mencari Rata-Rata, Maksimum dan Minimum

Program :

#include <iostream.h>
#include <conio.h>
#include <stdlib.h>

//gatewan.com -- Wawan Beneran

//MENCARI RATA - RATA, MAKSIMUM DAN MINIMUM
void main()
{
randomize();
int data, mak, min,tot=0;
float rata;
for(int i=1;i<=5;i++)
{
data=random(100);
cout<<"Data masuk : "<<data<<endl;
if (i==1)
mak=min=data;
else
{
if (mak<data)
mak=data;
if (min>data)
min=data;
}
tot=tot+data;
}
rata=tot/5;
cout<<"Rata-rata : "<<rata<<endl;
cout<<"Masimum : "<<mak<<endl;
cout<<"Minimum : "<<min<<endl;
getch();
}

2. Perulangan Menggunakan do .. while

 Mencari Rata-Rata, Maksimum dan Minimum  

Program :

#include <iostream.h>
#include <conio.h>
#include <stdlib.h>

//gatewan.com --- Wawan Beneran

//MENCARI RATA-RATA, MAKSIMUM DAN MINIMUM
void main()
{
randomize();
int data, mak, min,tot=0,i=1;
float rata;
do
{
data=random(100);
cout<<"Data masuk : "<<data<<endl;
if (i==1)
mak=min=data;
else
{
if (mak<data)
mak=data;
if (min>data)
min=data;
}
tot=tot+data;
i++;
}while(i<=5);
rata=tot/5;
cout<<"Rata-rata : "<<rata<<endl;
cout<<"Masimum : "<<mak<<endl;
cout<<"Minimum : "<<min<<endl;
getch();
}

3. Perulangan Menggunakan while

 

 Mencari Rata-Rata, Maksimum dan Minimum 

 Program :

#include <iostream.h>
#include <conio.h>
#include <stdlib.h>

//gatewan.com -- Wawan Beneran
//MENCARI RATA-RATA, MAKSIMUM DAN MINIMUM

void main()
{
randomize();
int data, mak, min,tot=0,i=1;
float rata;
while(i<=5)
{
data=random(100);
cout<<"Data masuk : "<<data<<endl;
if (i==1)
mak=min=data;
else
{
if (mak<data)
mak=data;
if (min>data)
min=data;
}
tot=tot+data;
i++;
}
rata=tot/5;
cout<<"Rata-rata : "<<rata<<endl;
cout<<"Masimum : "<<mak<<endl;
cout<<"Minimum : "<<min<<endl;
getch();
}

4. Kombinasi for dan do .. while

 

 Nota Pembayaran 

 Program :

#include <iostream.h>
#include <conio.h>
#include <iomanip.h>

//gatewan.com -- Wawan Beneran
//NOTA PEMBAYARAN

void main()
{
cout<<"NOTA PENJUALAN\n";
cout<<"GATEWAN MARKET\n";
cout<<"Jl. Parangtritis No 10 Yogyakarta\n";
cout<<"===================================================================\n";
cout<<"| No. | Nama Barang | Jml | Hg Sat | Jml Hg | Diskon | Tot Hg |\n";
cout<<"===================================================================\n";
for(int i=1;i<=15;i++)
{
cout<<"|                                                                  |\n";
}
cout<<"===================================================================\n";
cout<<"| TOTAL Bayar \n";
cout<<"===================================================================\n";
int i=1; char jw;
float jml,hgsat,jmlhg,disk,hgdisk,totdisk,totsemua,tothg;
char nmbrg[30];
do
{
gotoxy(3,6+i);cout<<i;
gotoxy(8,6+i);cin>>nmbrg;
gotoxy(22,6+i);cin>>jml;
gotoxy(28,6+i);cin>>hgsat;
jmlhg=jml*hgsat;
gotoxy(37,6+i);cout<<jmlhg;
gotoxy(46,6+i);cin>>disk;
hgdisk=(disk/100)*jmlhg;
gotoxy(50,6+i);cout<<hgdisk;
tothg=jmlhg-hgdisk;
totdisk=totdisk+hgdisk;
totsemua=totsemua+tothg;
gotoxy(55,6+i);cout<<tothg;
gotoxy(50,23);cout<<totdisk;
gotoxy(55,23);cout<<totsemua;
gotoxy(30,1);cout<<"Input data lagi [y/t]? ";cin>>jw;
i++;
gotoxy(30,1);clreol();
}while(jw=='y');
getch();
}

5. Membuat Bidang ( Perulangan dan Percabangan - > switch)

 

Diagonal Bawah

Diagonal Atas

Silang

Segitiga Siku-Siku Terbalik Kiri

Segitiga Siku-Siku Tegak

Segitiga Siku-Siku Terbalik Kanan

 Program :

#include <iostream.h>
#include <conio.h>
#include <iomanip.h>

//gatewan.com -- Wawan Beneran
//Membuat Bidang

void main()
{
int pilih;
do{
clrscr();
cout<<"Menu Pilihan "<<endl;
cout<<"1. Diagonal bawah"<<endl;
cout<<"2. Diagonal atas"<<endl;
cout<<"3. Silang"<<endl;
cout<<"4. atas "<<endl;
cout<<"5. bawah "<<endl;
cout<<"6. bawah kiri"<<endl;
cout<<"7. bawah kanan"<<endl;
cout<<"8. Keluar"<<endl;
cout<<"Pilihan anda : ";cin>>pilih;
switch(pilih)
{
case 1:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if(i==j)
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
case 2:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if(i+j==11)
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
case 3:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if((i==j)||(i+j==11))
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
case 4:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if(i+j<=11)
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
case 5:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if(i+j>=11)
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
case 6:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if(i>j)
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
case 7:
{
for(int i=1;i<=10;i++)
{ for(int j=1;j<=10;j++)
if(i<j)
cout<<"*";
else
cout<<" ";
cout<<endl;
}
getch();
break;
}
}
}while(pilih!=8);
getch();
}

Sumber :
http://www.gatewan.com/2015/02/koleksi-program-perulangan-c.html

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