Modify the algorithm in this section to use an array of strings, and to find the

Question

Modify the algorithm in this section to use an array of strings, and to find the last match. In this example, a match is a word of a specified length. For example, when asked for the last word of length 3, you should locate “was” at index 7.

Complete the following file:

FindLast.java

import java.util.Scanner;

public class FindLast
{
public static void main(String[] args)
{
String[] words = { "Mary", "had", "a", "little", "lamb",
"it's", "fleece", "was", "white", "as",
"snow" };
  
Scanner in = new Scanner(System.in);
System.out.print("Word length: ");
int wordLength = in.nextInt();

boolean found = . . .;
int pos = . . .;
while (. . .)
{
if (. . .)
{
. . .;
}
else
{
. . .;
}
}

if (. . .)
{
System.out.println("Found " + words[pos] + " at position " + pos);
}
else
{
System.out.println("No word of length " + wordLength);
}
}
}

Explanation / Answer

import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Scanner;
public class FindLast
{
public static void main(String[] args)
{
String[] words = { "Mary", "had", "a", "little", "lamb",
"it's", "fleece", "was", "white", "as",
"snow" };
  
Scanner in = new Scanner(System.in);
System.out.print("Word length: ");
int wordLength = in.nextInt();
boolean found = false;
int pos = 0, i = 0;
while (i < words.length)
{
if (words[i].length() == wordLength)
{
found = true;
pos = i;
}
i++;
}
if (found)
{
System.out.println("Found " + words[pos] + " at position " + pos);
}
else
{
System.out.println("No word of length " + wordLength);
}
}
}

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