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Member Methods
void accept() : Inputs a sentence
void vowel() : Prints those words that begin with vowels and end with consonants
void newsen() : Creates new sentences after removing those words that are found in the vowel() method
15. Use the following specifications to design a Java program.
Class name : swap
Data Members
String sen : enters a sentence.
String nwsen : creates a new sentence
Member Methods
swap(String s) : assigns s to sen
void interchange() : interchanges the words as shown in the following example.
void display() : prints both the words
Input: God Is Great
Output: Great Is God
16. Write a program in Java to enter a string in a mixed case. Arrange all the letters of the string such that all the upper case characters
are followed by the lower case characters.
Sample Input: India Is A GREAT cOUNTRY
Sample Output: IIAGREATOUNTRYndiasc
17. Write a program in Java to accept a three-letter word. Display all the probable three-letter combinations such that no letter
should be repeated in the output within each combination.
Sample Input: CAT
Sample Output: CAT, ATC, TAC, TCA, CTA, ACT
18. Write a program in Java to input a string in upper case and print the frequency of each character. For example:
INPUT: COMPUTER HARDWARE
OUTPUT:
Characters Frequency
A 2
C 1
D 1
E 2
H 1
M 1
O 1
P 1
R 3
T 1
U 1
W 1
19. Write a Java program to accept a string. Convert the string into upper case. Count and print the number of double letter sequences
that exist in the string.
Sample Input: “SHE WAS FEEDING THE LITTLE RABBIT WITH AN APPLE”
Sample Output: 4
20. Write a Java program to initialise the seven Wonders of the World along with their locations in two different arrays. Search for a
country input by the user. If it is found, then display the name of the country along with its Wonder, otherwise display “Sorry not
found!”.
Seven Wonders: CHICHEN ITZA, CHRIST THE REDEEMER, TAJ MAHAL, GREAT WALL OF CHINA, MACHU PICCHU, PETRA, COLOSSEUM
Locations: MEXICO, BRAZIL, INDIA, CHINA, PERU, JORDAN, ITALY
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