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Why is this program running when input is 1?


Why is this program running when input is 1?

By : Ahmed Seodi
Date : November 22 2020, 09:00 AM
I hope this helps . I wrote a C program to use recursive functions to find the factorial of a number and the code is given below:
code :
int factorial(int a)
{
    while(a>1)
    return a*factorial(--a);
}
int factorial(int a)
{
   if(a==1)return 1;
   //while(a>1)               // you use recursion then why using loop 
   return a*factorial(a-1);
}


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Keeping a bash script running along the program it has started, and sending the program input

Keeping a bash script running along the program it has started, and sending the program input


By : Dave92983
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further If you want to run the process alongside the script, you need to run it in the background:
code :
command &
pid=$!
command <<EOF
input
more input
even more input
var=$HOME
EOF
tmp=$(mktemp)
cat > "$tmp" <<EOF
input
more input
even more input
var=$HOME
EOF
command < "$tmp" &
pid=$!
When running jar program from java code, the jar program's gui freezes on direct input

When running jar program from java code, the jar program's gui freezes on direct input


By : EmilyG
Date : March 29 2020, 07:55 AM
To fix the issue you can do First of all, instead of using the stream gobbler, just inherit the process's io:
code :
final ProcessBuilder p1 = new ProcessBuilder(command).inheritIO();
p1.start();
p1.redirectInput(Redirect.from(new File("NUL"))).redirectOutput(Redirect.to(new File("NUL")))
                        .redirectError(Redirect.to(new File("NUL")));
Program won't display answer of program after running it and typing in the correct input

Program won't display answer of program after running it and typing in the correct input


By : user3730947
Date : March 29 2020, 07:55 AM
wish helps you So I have my program, and it just won't run after the last question (which needs input). My code is here: , Change it to this
code :
String userinput =  JOptionPane.showInputDialog(null, "What is your name?",
      "Mlg recess poofs",
      JOptionPane.ERROR_MESSAGE);
Scanner input = new Scanner(System.in);
String userinput = input.next();
I wrote this program to find if a given input is power of 2 , this program is not running for very large number such as

I wrote this program to find if a given input is power of 2 , this program is not running for very large number such as


By : SOS
Date : March 29 2020, 07:55 AM
help you fix your problem The problem is that 1018 is out of range of Java int, which stores numbers up to 231-1, or roughly 2*109. You can expand the range of your program by using long in place of int to accept numbers up to 9*1018, or to make it accept virtually unlimited range by using BigInteger:
code :
BigInteger n = new BigInteger(numericString);
BigInteger test = n.and(n.subtract(BigInteger.ONE));
if (test.equals(BigInteger.ZERO)) {
    ...
}
Asking for user input while the program keeps running?

Asking for user input while the program keeps running?


By : user2081862
Date : March 29 2020, 07:55 AM
will help you I believe you'd have to use threads in order to have separate processes running while also having user interaction.
You can read about threading in python here (specifically the threading module in Python 3): https://docs.python.org/3/library/threading.html
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