Welcome to the Java Programming Forums

The professional, friendly Java community. 21,500 members and growing!

The Java Programming Forums are a community of Java programmers from all around the World. Our members have a wide range of skills and they all have one thing in common: A passion to learn and code Java. We invite beginner Java programmers right through to Java professionals to post here and share your knowledge. Become a part of the community, help others, expand your knowledge of Java and enjoy talking with like minded people. Registration is quick and best of all free. We look forward to meeting you.

>> REGISTER NOW TO START POSTING

Thread: Counting the amount of zeroes, odd and even numbers in an integer

1. Counting the amount of zeroes, odd and even numbers in an integer

```public class NumSearch {

public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int input;
int i=0,g=0,f=0;
int even = 0;
int odd = 0;
int zero = 0;
String temp = "";

System.out.println("Enter a number: ");
input = scan.nextInt();

temp = Integer.toString(input);

while(i <= (temp.length()-1)){
if(temp.charAt(i) == 0){
zero++;
i++;
}else{
i++;
}
}

while(f <=(temp.length()-1)){
if((temp.charAt(f) % 2) != 0){
odd++;
f++;
}else{
f++;
}
}
while(g <= (temp.length()-1)){
if((temp.charAt(g) %2) == 0 ){
even++;
g++;
}else{
g++;
}

}
System.out.println("The number of 0's: " + zero + "\nThe number of odd's: " + odd
+ "\nThe number of even's: " + even);
}
}```

This code is not counting the amount of zeroes in the integer. Can anyone see why?
Thanks!

2. Re: Counting the amount of zeroes, odd and even numbers in an integer

This code is not counting the amount of zeroes in the integer.
Can you post the console that shows the input and output from your program?

One thing I see is that you do not understand the difference between a character and an int.
The char '0' does not have the integer value of 0. Look at the ASCII character integer values table.
When testing for the character zero compare against '0' not 0

3. Re: Counting the amount of zeroes, odd and even numbers in an integer

Comparing it to '0' worked this time... I tried that earlier, but the code didn't compile.

Thanks!