edu.princeton.cs.algorithms

Class Counter

java.lang.Object

edu.princeton.cs.algorithms.Counter

All Implemented Interfaces:

Comparable<Counter>

public class Counter
extends Object
implements Comparable<Counter>

The Counter class is a mutable data type to encapsulate a counter.

For additional documentation, see Section 1.2 of Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne.

Author:

Robert Sedgewick, Kevin Wayne

Constructor Summary

Constructors

Constructor and Description
Counter(String id) Initializes a new counter starting at 0, with the given id.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(Counter that) Compares this counter to that counter.
void	increment() Increments the counter by 1.
static void	main(String[] args) Reads two command-line integers N and T; creates N counters; increments T counters at random; and prints results.
int	tally() Returns the current count.
String	toString() Returns a string representation of this counter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Counter

public Counter(String id)

Initializes a new counter starting at 0, with the given id.

Parameters:

id - the name of the counter

Method Detail

increment

public void increment()

Increments the counter by 1.

tally

public int tally()

Returns the current count.

toString

public String toString()

Returns a string representation of this counter

Overrides:

toString in class Object

compareTo

public int compareTo(Counter that)

Compares this counter to that counter.

Specified by:

compareTo in interface Comparable<Counter>

main

public static void main(String[] args)

Reads two command-line integers N and T; creates N counters; increments T counters at random; and prints results.