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- package $Random_Projects;
- import java.util.Scanner;
- public class PhoneBook {
- public static void main (String[] args){
- Scanner myScan = new Scanner(System.in);
- System.out.println("Enter number of entries in the phone book ");
- int num= myScan.nextInt();
- String PBEnteries[]=new String[num];
- for(int i=0; i<PBEnteries.length;i++){
- System.out.println("Enter name and telephone number: ");
- PBEnteries[i]=myScan.nextLine();
- }
- System.out.println("Enter name: ");
- String nameSearch=myScan.next();
- boolean search=false;
- for(int i=0;i<PBEnteries.length;i++)
- for(int j=0;j<nameSearch.length();j++){
- if(nameSearch.charAt(j)==PBEnteries[i].charAt(j)){
- if(j == nameSearch.length()){
- search=true;
- System.out.println(PBEnteries[i]);}
- }
- }
- if(search == false)
- System.out.println("Invalid name.");
- }
- }
- Enter number of entries in the phone book
- 3
- Enter name and telephone number:
- Enter name and telephone number:
- Mohammed 1212
- Enter name and telephone number:
- Ali 0000
- Enter name:
- Ali
- Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0
- at java.lang.String.charAt(String.java:658)
- at $Random_Projects.PhoneBook.main(PhoneBook.java:21)
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