C++ tut 1

1.program operator incremen dan decrement
Code:
#include <iostream>
#include <conio.h>

using namespace std;
int main()
{
    int x=10;
    x = ++x;
    cout<<"nilai x =%d\n"<<x;
    x = ++x;
    cout<<"nilai x =%d\n"<<x;
    x = --x;
    cout<<"nilai x = %d\n"<<x;
    getch();
}

2program lain dengan menggunakan operator increment dan decrement
Code:
#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int a,b,c;
    a=5;
    b=5;
    c=a+b++;
    cout<<"nilai c = %d\n"<<c;
    getch();
}
3.perbedaan antara signed dan usigned
Code:
#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    signed i=-127;
    unsigned j;
    j=i;
    cout<<"i = %d<< j = %u\n"<<i,j;
    getch();
}
4.program dengan float dan double
Code:
#include <iostream>
#include <conio.h>

using namespace std;


int main()
{
    float x;
    double y;
   
    x=56.0123456789;
    y=56.0123456789;
    cout<<"x = %20.16f\n"<<x;
    cout<<"y = %20.161F\n"<<y;
    getch();
}
5.program dengan menggunakan variable
Code:
#include <iostream>
#include <conio.h>

using namespace std;
int main()
{
    int jumlah;
    float harga_per_satuan, harga_total;
    jumlah = 50;
    harga_per_satuan = 15.7;
    harga_total = jumlah*harga_per_satuan;
    cout<<"harga total = %f\n"<<harga_total;
    getch();
}
6.program menggunakan konstanta
Code:
#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int a,b,c;
    unsigned int d;
   
    a =15;
    b=017;
    c=0xf;
    d=55775U;
    cout<<"a = %7d \n"<<a;
    cout<<"b = %7d \n"<<b;
    cout<<"c = %7d \n"<<c;
    cout<<"d = %7d \n"<<d;
    getch();
}
7.program menggunakan operator aritmatika
Code:
#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    float luas,pi,jari,keliling;
    pi = 3.1428;
    jari = 12.0;
    luas = pi*jari*jari;
    cout<<"jari-jari = %f\n"<<jari;
    cout<<"luas = %f "<<luas;
    getch();
}

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