(a) Write the WordList method numWordsOfLength. Method numWordsOfLength returns the number of words in the WordList that are exactly len letters long. For example, assume that the instance variable myList of the WordList animals contains the following. ["cat", "mouse", "frog", "dog", "dog"] The table below shows several sample calls to numWordsOfLength. Call animals.numWordsOfLength animals.numWordsOfLength animals.numWordsOfLength (4) (3) (2) Result returned by call 1 3 0

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Write program in Java

(a) Write the WordList method numWordsOfLength. Method numWordsOfLength returns the number of words in the WordList
that are exactly len letters long. For example, assume that the instance variable myList of the WordList animals contains the
following.
["cat", "mouse", "frog", "dog", "dog"]
The table below shows several sample calls to numWordsOfLength.
Call
animals.numWordsOfLength (4)
animals.numWordsOfLength (3)
animals.numWordsOfLength (2)
Result returned by call
1
Complete method numWordsofLength below.
// postcondition: returns the number of words in this WordList that
// are exactly len letters long
public int numWordsOfLength(int len)
MO
3
0
Transcribed Image Text:(a) Write the WordList method numWordsOfLength. Method numWordsOfLength returns the number of words in the WordList that are exactly len letters long. For example, assume that the instance variable myList of the WordList animals contains the following. ["cat", "mouse", "frog", "dog", "dog"] The table below shows several sample calls to numWordsOfLength. Call animals.numWordsOfLength (4) animals.numWordsOfLength (3) animals.numWordsOfLength (2) Result returned by call 1 Complete method numWordsofLength below. // postcondition: returns the number of words in this WordList that // are exactly len letters long public int numWordsOfLength(int len) MO 3 0
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