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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Scanner input = new Scanner(System.in);
  13.         String nome[] = new String[3];
  14.  
  15.         for(int i = 0; i<nome.length; ++i) {
  16.  
  17.         System.out.print("Digite o nome do " +(i+1) + "º aluno: ");
  18.         nome[i] = input.nextLine();
  19.  
  20.         }
  21.  
  22. 	    System.out.println(" ");
  23.  
  24. 	    Arrays.sort(nome);
  25.  
  26. 	    String[] firstNames = new String[nome.length];
  27.  
  28. 	    for (int i=0; i< nome.length; i++){
  29.  
  30. 	        firstNames[i] = nome[i].split("\\s")[0];         
  31. 	    }
  32.  
  33.     	for(String firstName : firstNames){
  34.     		System.out.println(firstName);
  35.     	}
  36.  
  37. 	}
  38. }
Success #stdin #stdout 0.05s 321344KB
comments (?)
stdin
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Joao da Silva
Felipe Santos
Adriano Kramer
stdout
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Digite o nome do 1º aluno: Digite o nome do 2º aluno: Digite o nome do 3º aluno:  
Adriano
Felipe
Joao
https://ideone.com/kRK9iF
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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