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Thread: How do I fix my program so I can use the keyboard to type in the numbers?

  1. #1
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    Default How do I fix my program so I can use the keyboard to type in the numbers?

    I am having trouble fixing my program so I can enter the data with the keyboard method. Please Help.
    How do I fix my program so I can use the keyboard to type in the numbers?

    // Queue.java
    // demonstrates queue
    // to run this program: C>java QueueApp
    //////////////////////////////////////...
    class Queue
    {
    private int maxSize;
    private long[] queArray;
    private int front;
    private int rear;
    private int nItems;
    //------------------------------------...
    public Queue(int s) // constructor
    {
    maxSize = s;
    queArray = new long[maxSize];
    front = 0;
    rear = -1;
    nItems = 0;
    }
    //------------------------------------...
    public void insert(long j) // put item at rear of queue
    {
    if(rear == maxSize-1) // deal with wraparound
    rear = -1;
    queArray[++rear] = j; // increment rear and insert
    nItems++; // one more item
    }
    //------------------------------------...
    public long remove() // take item from front of queue
    {
    long temp = queArray[front++]; // get value and incr front
    if(front == maxSize) // deal with wraparound
    front = 0;
    nItems--; // one less item
    return temp;
    }
    //------------------------------------...
    public long peekFront() // peek at front of queue
    {
    return queArray[front];
    }
    //------------------------------------...
    public boolean isEmpty() // true if queue is empty
    {
    return (nItems==0);
    }
    //------------------------------------...
    public boolean isFull() // true if queue is full
    {
    return (nItems==maxSize);
    }
    //------------------------------------...
    public int size() // number of items in queue
    {
    return nItems;
    }
    //------------------------------------...
    } // end class Queue
    //////////////////////////////////////...
    import java.util.Scanner;
    class QueueApp
    {
    public static void main(String[] args)
    {
    Queue theQueue = new Queue(5); // queue holds 5 items
     
    Scanner scannerObject = new Scanner(System.in);
     
    System.out.println("Enter 10 numbers");
     
    double[] score = new double[7];
     
    theQueue.insert() = scannerObject.nextInt(); 
     
    System.out.println("You entered " + x);
     
    theQueue.insert(10); // insert 4 items
    theQueue.insert(20);
    theQueue.insert(30);
    theQueue.insert(40);
     
    theQueue.remove(); // remove 3 items
    theQueue.remove(); // (10, 20, 30)
    theQueue.remove();
     
    theQueue.insert(50); // insert 4 more items
    theQueue.insert(60); // (wraps around)
    theQueue.insert(70);
    theQueue.insert(80);
     
    while( !theQueue.isEmpty() ) // remove and display
    { // all items
    long n = theQueue.remove(); // (40, 50, 60, 70, 80)
    System.out.print(n);
    System.out.print(" ");
    }
    System.out.println("");
    } // end main()
    } // end class QueueApp


  2. #2
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: Fill in the queue from the keyboard help

    theQueue.insert(scannerObject.nextInt());

    Regards,
    Chris

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