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- import java.lang.*;
-
- /**
- * Created by dan on 6/14/17.
- */
- public class StringUtilities {
- /**
- * @return `Hello World` as a string
- */
- public static String getHelloWorld() {
- String hello = "Hello World";
- return hello;
- }
-
- /**
- * @param firstSegment a string to be added to
- * @param secondSegment a string to add
- * @return the concatenation of two strings, `firstSegment`, and `secondSegment`
- */
- public static String concatenation(String firstSegment, String secondSegment){
- String together = firstSegment + secondSegment;
- return together;
- }
-
- /**
- * @param firstSegment a string to be added to
- * @param secondSegment a string to add
- * @return the concatenation of an integer, `firstSegment`, and a String, `secondSegment`
- */
- public static String concatenation(int firstSegment, String secondSegment){
- String together = firstSegment + secondSegment;
- return together;
- }
-
- /**
- * @param input a string to be manipulated
- * @return the first 3 characters of `input`
- */
- public static String getPrefix(String input){
- String output = "";
- for(int i = 0; i <= 2 ; i++){
- output = output + input.charAt(i);
- }
- return output;
- }
-
- /**
- * @param input a string to be manipulated
- * @return the last 3 characters of `input`
- */
- public static String getSuffix(String input){
- String output = "";
- for(int i = input.length() - 3; i < input.length(); i ++){
- output = output + input.charAt(i);
- }
- return output;
- }
-
- /**
- * @param inputValue the value to be compared
- * @param comparableValue the value to be compared against
- * @return the equivalence of two strings, `inputValue` and `comparableValue`
- */
- public static Boolean compareTwoStrings(String inputValue, String comparableValue){
- boolean output = false;
- if(inputValue.equals(comparableValue)){
- output = true;
- }else{
- output = false;
- }
- return output;
- }
-
- /**
- * @param inputValue the value input from user
- * @return the middle character of `inputValue`
- */
- public static Character getMiddleCharacter(String inputValue){
- int middle = 0;
- char middleChar = 'a';
- if(inputValue.length() % 2 == 0){
- middle = (inputValue.length() / 2) - 1;
- middleChar = inputValue.charAt(middle);
- } else if(inputValue.length() % 2 == 1){
- middle = inputValue.length() / 2;
- middleChar = inputValue.charAt(middle);
- }
- return middleChar;
- }
-
- /**
- * @param spaceDelimitedString a string, representative of a sentence, containing spaces
- * @return the first sequence of characters
- */
- public static String getFirstWord(String spaceDelimitedString){
- int space = spaceDelimitedString.indexOf(' ');
- String firstWord = spaceDelimitedString.substring(0,space);
- return firstWord;
- }
-
- /**
- * @param spaceDelimitedString a string delimited by spaces
- * @return the second word of a string delimited by spaces.
- */
- public static String getSecondWord(String spaceDelimitedString){
- int space = spaceDelimitedString.indexOf(' ');
- String secondWord = spaceDelimitedString.substring(space+ 1, spaceDelimitedString.length());
- return secondWord;
- }
-
- /**
- * @param stringToReverse
- * @return an identical string with characters in reverse order.
- */
- public static String reverse(String stringToReverse){
- String output = "";
- for(int i = stringToReverse.length() - 1; i >= 0; i --){
- output = output + stringToReverse.charAt(i);
- }
- return output;
- }
- }
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