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Alla [95]
2 years ago
11

1. Assume that word is a variable of type String that has been assigned a value . Assume furthermore that this value always cont

ains the letters "dr" followed by at least two other letters. For example: "undramatic", "dreck", "android", "no-drip".
Assume that there is another variable declared , drWord, also of type String . Write the statements needed so that the 4-character substring word of the value of word starting with "dr" is assigned to drWord. So, if the value of word were "George slew the dragon" your code would assign the value "drag" to drWord.

2. Assume that sentence is a variable of type String that has been assigned a value . Assume furthermore that this value is a String consisting of words separated by single space characters with a period at the end. For example: "This is a possible value of sentence."

Assume that there is another variable declared , firstWord, also of type String . Write the statements needed so that the first word of the value of sentence is assigned to firstWord. So, if the value of sentence were "Broccoli is delicious." your code would assign the value "Broccoli" to firstWord.
Computers and Technology
1 answer:
s2008m [1.1K]2 years ago
4 0

Answer:

1.word = "George slew the dragon"

startIndex = word.find('dr')

endIndex = startIndex + 4

drWord = word[startIndex:endIndex]

2. sentence = "Broccoli is delicious."

sentence_list = sentence.split(" ")

firstWord = sentence_list[0]

Explanation:

The above snippet is written in Python 3.

1. word is initialized to a sentence.

Then we find the the occurence of 'dr' in the sentence which is assign to startIndex

We then add 4 to the startIndex and assign it to endIndex. 4 is added because we need a length of 4

We then use string slicing method to create a substring from the startIndex to endIndex which is assigned to drWord.

2. A string is assigned to sentence. Then we split the sentence using sentence.split(" "). We split based on the spacing. The inbuilt function of split returns a list. The first element in the list is assigned to firstWord. List uses zero based index counting. So. firstWord = sentence_list[0] is use to get first element.

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In Java please:
Nana76 [90]

Answer:

See explaination

Explanation:

public class PalindromeChange {

public static void main(String[] args) {

System.out.println("mom to non palindrom word is: "+changTONonPalindrom("mom"));

System.out.println("mom to non palindrom word is: "+changTONonPalindrom("aaabbaaa"));

}

private static String changTONonPalindrom(String str)

{

int mid=str.length()/2;

boolean found=false;

char character=' ';

int i;

for(i=mid-1;i>=0;i--)

{

character = str.charAt(i);

if(character!='a')

{

found=true;

break;

}

}

if(!found)

{

for(i=mid+1;i<str.length();i++)

{

character = str.charAt(i);

if(character!='a')

{

found=true;

break;

}

}

}

// This gives the character 'a'

int ascii = (int) character;

ascii-=1;

str = str.substring(0, i) + (char)ascii+ str.substring(i + 1);

return str;

}

}

6 0
2 years ago
Write a method called justFirstAndLast that takes a single String name and returns a new String that is only the first and last
NemiM [27]

Answer:

Answer is in the attached screenshot.

Explanation:

Using regex to split a given input string via whitespace, then returns the first and last element of the array.

6 0
2 years ago
Write a code segment that uses an enhanced for loop to print all elements of words that end with "ing". As an example, if words
nadezda [96]

Answer:

 public static void main(String[] args) {

   String ing[] = {"ten","fading","post","card","thunder","hinge","trailing","batting"};

   for (String i: ing){

     if (i.endsWith("ing")){

       System.out.println(i);

    }

   }

 }

Explanation:

The for-loop cycles through the entire list and the if-statement makes it so that the string is only printed if it ends with "ing"

6 0
2 years ago
Write code which takes a user input of a String and an integer. The code should print each letter of the String the number of ti
il63 [147K]

import java.util.*;

public class myClass {

public static void main(String args[]) {

Scanner scan = new Scanner(System.in);

System.out.print("Input a String: ");

String str = scan.nextLine();

System.out.print("Input an integer: ");

int num = scan.nextInt();

for(int i=str.length()-1; i>=0; i--) {

for(int j=0; j<num; j++) {

System.out.print(str.charAt(i));

}

}

}

}

8 0
2 years ago
Consider the eight bit signed binary number 1110 0101. Convert it to signed decimal from assuming the signed binary number is re
lapo4ka [179]

Answer:

-26

Explanation:

The given binary number is 1110 0101. Also given that the signed binary number is represented using one's compliment.

We begin by computing the 1s complement representation of 1110 0101 by inverting the bits: 00011010

Converting 00011010 to decimal, it corresponds to 26.

So the 1s complement of the original number is 26. This means that the original number was -26.

7 0
2 years ago
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