F&A Diskussionen
Can someone explain this code to me....
class ReverseNumberDemo
{ public static void main(String args[]) {
int num=123456789;
int reversenum =0;
while( num != 0 ) {
reversenum = reversenum * 10;
reversenum = reversenum + num%10;
num = num/10; }
System.out.println("Reverse of specified number is: "+reversenum);
}
}
the thing I don't get is the reversenum part......isn't reversenum=0 so wouldn't reversenum*10=0
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8 Antwortencan anyone plz explain me this program step by step?#include <iostream>
using namespace std;
class MyClass {
public:
int var;
MyClass() { }
MyClass(int a)
: var(a) { }
MyClass operator+(MyClass &obj) {
MyClass res;
res.var= this->var+obj.var;
return res;
}
};
int main() {
MyClass obj1(12), obj2(55);
MyClass res = obj1+obj2;
cout << res.var;
}I am not getting the part inside operator+
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8 Antwortendef add(x, y):
return x + y
def do_twice(func, x, y):
return func(func(x, y), func(x, y))
a = 5
b = 10
print(do_twice(add, a, b))
Please explain step by step
Which is caller here?
Explain the 3rd and 4th line ?
why in 4th line we write add(add(x,y),add(x,y)) which is function of 1st line ?
how can we write function after return statement insted of (x+y+x+y )=30?
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2 AntwortenWhat is use of coding?
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1 Antwortcan someone please explain why this code keeps telling me complication error instead of outputting the value of speed.
#include <iostream>
using namespace std;
class myClass {
public:
void setcarspeed (int a){
speed=a;
}
int getcarspeed(){
return speed;
}
private:
int speed;
};
int main() {
myClass obj;
obj.setcarspeed (40);
cout<<obj.getcarspeed ;
return 0;
}
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3 AntwortenHello guys right now I am kinda of new in python
my question is related to the function call len()
len() its print out the character but here it's the confusing part, I am working with a list let me explain an example
players
['lee', 'bob', 'moe', 'joe']
len(players)
4
why it's giving me 4 item in the list I thought len it counts the characters and if I do this it give me the correct somewhat answer what I am seeking,
len(players [-1])
3
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8 AntwortenWhen I enter two numbers the sum is displayed.. but when I input character as yes not y... Then it goes into an infinite loop... can anyone explain why?
int a,b;
char ch;
do
{
cout<<"Enter two numbers: ";
cin>>a>>b;
cout<<"The sum is "<<a+b
<<"\nDo you want to try again (y/n): ";
cin>>ch;
}while(ch=='Y'||ch=='y');
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4 AntwortenHeute heiß
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