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  1. int num = 294;
  2. int repeticiones = 0;
  3.  
  4. System.out.println("Nº inicial es: " + num);
  5. while(num > 9){
  6. int producto = 1;
  7. while(num != 0){
  8. int unidades = num % 10;
  9. producto *= unidades;
  10. num = (num - unidades)/10;
  11. }
  12.  
  13. repeticiones++;
  14. System.out.println("Producto " + repeticiones + "º es:" + producto);
  15. num = producto;
  16. }
  17.  
  18. System.out.println("La persistencia es: " + repeticiones + ", la cifra final: " + num);
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
Main.java:1: error: class, interface, or enum expected
int num = 294;
^
Main.java:1: error: class, interface, or enum expected
int num = 294;
    ^
Main.java:2: error: class, interface, or enum expected
int repeticiones = 0;
^
Main.java:4: error: class, interface, or enum expected
System.out.println("N? inicial es: " + num);
^
Main.java:5: error: class, interface, or enum expected
while(num > 9){
^
Main.java:7: error: class, interface, or enum expected
    while(num != 0){
    ^
Main.java:9: error: class, interface, or enum expected
        producto *= unidades;
        ^
Main.java:10: error: class, interface, or enum expected
        num = (num - unidades)/10;
        ^
Main.java:11: error: class, interface, or enum expected
    }
    ^
Main.java:14: error: class, interface, or enum expected
    System.out.println("Producto " + repeticiones + "? es:" + producto);
    ^
Main.java:15: error: class, interface, or enum expected
    num = producto;
    ^
Main.java:16: error: class, interface, or enum expected
}
^
12 errors
stdout
Standard output is empty