【数据结构】自建循环队列（简单数组实现）

简单的自建的循环队列（很基础），通过简单数组实现。

package MyCollection;

public class MyQueue {
	private Object[] objects;
	private int front;
	private int rear;
	private int capacity;
	
	public MyQueue() {
		this(10);
	}

	public MyQueue(int size) {
		capacity=size;
		front=-1;
		rear=-1;
		objects=new Object[size];
	}
	
	public boolean isEmpty() {
		return front==-1;
	}
	
	public boolean isFull() {
		// TODO Auto-generated method stub
		return ((rear+1)%capacity==front);
	}
	
	public int getQueueSize() {
		return ((capacity-front+rear+1)%capacity);
	}
	
	
	public void enQueue(Object object){
		if (isFull()) {
			try {
				throw new Exception();
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}else {
			rear=(rear+1)%capacity;
			objects[rear]=object;
			if (front==-1) {
				front=rear;
			}
		}					
	}
	
	
	public Object deQueue() {
		Object Data=objects[front];
		if (isEmpty()) {
			try {
				throw new Exception();
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}else {
			Data=objects[front];
			if (front==rear) {
				front=rear=-1;
			}else {
				front=(front+1)%capacity;
			}
		}
		return Data;
	}

	public Object[] getObjects() {
		return objects;
	}

	public void setObjects(Object[] objects) {
		this.objects = objects;
	}

	public int getFront() {
		return front;
	}

	public void setFront(int front) {
		this.front = front;
	}

	public int getRear() {
		return rear;
	}

	public void setRear(int rear) {
		this.rear = rear;
	}

	public int getCapacity() {
		return capacity;
	}

	public void setCapacity(int capacity) {
		this.capacity = capacity;
	}
	
	
}

 

/**
 * !!!!!(队列相关测试)
 */
package MyCollection;

public class Test02 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		MyQueue myQueue=new MyQueue(5);
		myQueue.enQueue("wangzhe0");
		myQueue.enQueue("wangzhe1");
		myQueue.enQueue("wangzhe2");
		myQueue.enQueue("wangzhe3");
		myQueue.enQueue("wangzhe4");
		int a=myQueue.getQueueSize();
		System.out.println(myQueue.isFull());
	}

}