Write Java for 2 questions. (Zybook6.4) 1 Write a while loop that prints 1 to us

Question

Write Java for 2 questions. (Zybook6.4)

1

Write a while loop that prints 1 to userNum, using the variable i. Follow each number (even the last one) by a space. Assume userNum is positive. Ex: userNum = 4 prints:

import java.util.Scanner;

public class CountDown {
public static void main (String [] args) {
int userNum = 0;
int i = 0;

userNum = 4; // Assume positive

/* Your solution goes here */

System.out.println("");

return;
}
}

2

Re-type the following and run, note incorrect behavior. Then fix errors in the code, which should print numStars asterisks.

import java.util.Scanner;

public class StarPrinter {
public static void main (String [] args) {
int numStars = 0;
int numPrinted = 0;

numStars = 12;
numPrinted = 1;

/* Your solution goes here */

System.out.println("");

return;
}
}

Explanation / Answer

CountDown.java

import java.util.Scanner;
public class CountDown {
public static void main (String [] args) {
int userNum = 0;
int i = 0;
userNum = 4; // Assume positive
/* Your solution goes here */
while(i<userNum){
   i = i + 1;
   System.out.print(i+" ");
}
System.out.println("");
return;
}
}

Output:

1 2 3 4

StarPrinter.java

import java.util.Scanner;
public class StarPrinter {
public static void main (String [] args) {
int numStars = 0;
int numPrinted = 0;
numStars = 12;
numPrinted = 1;
/* Your solution goes here */
while (numPrinted != numStars+1) {
   System.out.print("*");   
   numPrinted++;
   }
     
System.out.println("");
return;
}
}

Output:

************

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