Java Problem 3 For each problem, you should: determine the inputs, outputs, and

Question

Java Problem 3

For each problem, you should:

determine the inputs, outputs, and error conditions

construct an algorithm

code your algorithm in Java

construct a set of test cases and use them to test and fix your program

Problem 3:

Ask the user for a sentence.

Output a sentence containing the same words, but in reverse order.

You may assume that the input sentence contains no punctuation except for a period at the end. The output sentence should be properly capitalized and ended with a period.

java ReverseWords

The quick brown fox jumps over the lazy dog.

RESULT: "Dog lazy the over jumps fox brown quick the."

Explanation / Answer

import java.util.Scanner;

public class ReverseString {

private static Scanner input;

public static void reverse(String s)
{
String s1="";
for (int i=0; i<=s.length()-1; i++)
{
if(s.charAt(i)!=' ')
s1=s1+s.charAt(i);
else {
String ops=revst(s1);
System.out.print(ops+" ");
s1="";
}
if(i==s.length()-1){
String ops=revst(s1);
System.out.print(ops);
}
}
}

public static String revst(String s)
{
String revString = "";
for (int j=s.length()-1; j!=-1; j--)
revString= revString + s.charAt(j);
return revString;
}

public static void main(String[] args)
{
input = new Scanner(System.in);
System.out.println("Please enter a Sentence: ");
String ips = input.nextLine();
System.out.println("Sentence after reversing the words is:");
reverse(ips);
}

}

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