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SearchReplace.java
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SearchReplace.java
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package compulsory_tasks;
import java.util.Scanner;
public class SearchReplace {
// recursive method to replace part of an entered string
public static void searchReplace(String oldString, String subString, String newString) {
// base case - print the string when it contains the replaced string in it
if (oldString.contains(newString)) {
System.out.println("The new string is: ");
System.out.println(oldString);
}
// recursive case - replace the contents within the function call
else {
searchReplace(oldString.replace(subString, newString), subString, newString);
}
}
// main method
public static void main(String[] args) {
// Create scanner object
Scanner userInput = new Scanner(System.in);
// Get user input
System.out.println("Please enter a string: ");
String oldString = userInput.nextLine();
System.out.println("Please enter a substring to find: ");
String toSub = userInput.nextLine();
System.out.println("Enter a string to replace the substring with: ");
String newSub = userInput.nextLine();
// call the method with arguments passed
searchReplace(oldString, toSub, newSub);
}
}