Question

I can’t get this program to count the spaces, I have a feeling there is a logic error in the loop, but I am too inexperienced to figure it out myself. Any tips?

System.out.print("Enter a string: ");
String myString = keyboard.next();
int numBlanks = 0;

//find string length
int length = myString.length() - 1;
System.out.println("length " + length);

for(int sequence = 0; sequence >= length; ++sequence);
{

    if(myString.charAt(length)==' ')
    {
        numBlanks += 1;
        length -= length;
    }
    else 
        length -= length;

}

Answer 1

There are few bugs I can see:

Semicolon at the end of for loop. Remove it.

Next

sequence >= length

should be

sequence <= length

and

if(myString.charAt(length)==' ')

should be

if(myString.charAt(sequence)==' ')

and you need to change length at all as you are already changing sequence.

So we get:

for(int sequence = 0; sequence <= length; ++sequence) {

    if(myString.charAt(sequence)==' ') {
        numBlanks += 1;
    }
}