Example usage for java.util EmptyStackException EmptyStackException

Introduction

In this page you can find the example usage for java.util EmptyStackException EmptyStackException.

Prototype

public EmptyStackException() 

Source Link

Document

Constructs a new EmptyStackException with null as its error message string.

Usage

From source file:CharacterStack.java

/**
 * @return//from ww w  .  ja  v  a2  s.  c om
 */
public char peek() {
    final int len = size;
    if (size == 0) {
        throw new EmptyStackException();
    }
    return buffer[len - 1];
}

---

From source file:CharacterStack.java

/**
 * @return/*w  w w.  ja  v  a2s  .co m*/
 */
public char pop() {
    int len = size;
    if (len == 0) {
        throw new EmptyStackException();
    }
    --len;
    final char result = buffer[len];
    size = len;
    return result;
}

---

From source file:ArrayListStack.java

/**
 * Looks at the object at the top of this stack without removing it.
 * //from  w  w  w .j av a2s.co m
 * @return The object at the top of this stack
 * @exception EmptyStackException
 *                If this stack is empty.
 */
public final T peek() {
    int size = size();
    if (size == 0) {
        throw new EmptyStackException();
    }
    return get(size - 1);
}

---

From source file:com.cup.digester.ArrayStack.java

/**
 * Returns the top item off of this stack without removing it.
 *
 * @return the top item on the stack/* w  w w . jav a2s.  co  m*/
 * @throws EmptyStackException  if the stack is empty
 */
public E peek() throws EmptyStackException {
    int n = size();
    if (n <= 0) {
        throw new EmptyStackException();
    } else {
        return get(n - 1);
    }
}

---

From source file:FastStack.java

/**
 * Returns the object at the top of the stack without removing it.
 * /*  www. j  a  v a  2s  .com*/
 * @return The object at the top of the stack.
 */
public Object peek() {
    if (this.size == 0) {
        throw new EmptyStackException();
    }
    return this.contents[this.size - 1];
}

---

From source file:FastStack.java

/**
 * Removes and returns the object from the top of the stack.
 * //from www.  ja va 2s  . c o  m
 * @return The object.
 */
public Object pop() {
    if (this.size == 0) {
        throw new EmptyStackException();
    }
    this.size -= 1;
    final Object retval = this.contents[this.size];
    this.contents[this.size] = null;
    return retval;
}

---

From source file:ArrayStack.java

/**
 * Returns the top item off of this stack without removing it.
 *
 * @return the top item on the stack/*w ww  .  j ava  2s. com*/
 * @throws EmptyStackException  if the stack is empty
 */
public Object peek() throws EmptyStackException {
    int n = size();
    if (n <= 0) {
        throw new EmptyStackException();
    } else {
        return get(n - 1);
    }
}

---

From source file:com.cup.digester.ArrayStack.java

/**
 * Returns the n'th item down (zero-relative) from the top of this
 * stack without removing it.//from www . j av  a 2 s .c  o  m
 *
 * @param n  the number of items down to go
 * @return the n'th item on the stack, zero relative
 * @throws EmptyStackException  if there are not enough items on the
 *  stack to satisfy this request
 */
public E peek(int n) throws EmptyStackException {
    int m = (size() - n) - 1;
    if (m < 0) {
        throw new EmptyStackException();
    } else {
        return get(m);
    }
}

---

From source file:com.cup.digester.ArrayStack.java

/**
 * Pops the top item off of this stack and return it.
 *
 * @return the top item on the stack/*from  w w  w.  j a  v a2s  .c o  m*/
 * @throws EmptyStackException  if the stack is empty
 */
public E pop() throws EmptyStackException {
    int n = size();
    if (n <= 0) {
        throw new EmptyStackException();
    } else {
        return remove(n - 1);
    }
}

---

From source file:ArrayStack.java

/**
 * Returns the n'th item down (zero-relative) from the top of this
 * stack without removing it.//w  ww  . j a  v a 2  s .  co m
 *
 * @param n  the number of items down to go
 * @return the n'th item on the stack, zero relative
 * @throws EmptyStackException  if there are not enough items on the
 *  stack to satisfy this request
 */
public Object peek(int n) throws EmptyStackException {
    int m = (size() - n) - 1;
    if (m < 0) {
        throw new EmptyStackException();
    } else {
        return get(m);
    }
}

---

• «
• 1
• 2
• 3
• »