The starting asterisk indicates that the data is to be read from the stream but ignored (i.e. it is not stored in the location pointed by an argument). Reference: http://www.cplusplus.com/reference/cstdio/scanf/ So the data would not be saved in the variable. 1 solved What does %*c do when getting input from stdin? [closed]
Try the Scanner class. Like this: import java.util.Scanner; public class New { public static void main(String[] args) { System.out.println(“Calculator”); Scanner scanner = new Scanner(System.in); System.out.println(“Enter Parameter “); System.out.print(“a : “); float a = scanner.nextFloat(); System.out.print(“+|-|*|/: “); String op = scanner.next(); System.out.print(“b : “); float b = scanner.nextFloat(); float c = 0; switch (op) { case … Read more
This should work. if you are not using an IDE, then maybe you changed your code and didn’t compile again. so you are essentially running an old code with different output? 2 solved Java Input from console giving unexpected values [closed]
You can try this to see if it produces the desired results. Characters that are not letters, space, newline or dot are rejected at the top of the while and all letters are set to lower case. Then the choice is to print one upper case letter at the start of the sentence or all … Read more
The gets function expects s to point to a character array that can accept a string. But in this case, s is uninitialized. So gets tries to dereference an uninitialized pointer. This invokes undefined behavior. If you were to set s to point to a preexisting array or if you used malloc to allocate space, … Read more
Not really sure how you want to add them, as int’s or Strings, but remember they have to be Objects. class Inp { public void scan() { Scanner sc = new Scanner(System.in); HashMap<Integer,Integer> map = new HashMap<Integer,Integer>(); while (true) { String sr = sc.nextLine(); String[] tk = sr.split(” “); Integer key = 0, value = … Read more
You can use fgets() to read the lines, and then strtok() to parse each line, this is a sample program, i’ve used the first element of the integer array as the array count, so you don’t need to store it in a separate variable, I did that because I assume you can have different length … Read more