/* http://es.stackoverflow.com/q/32488/127 */
import java.util.*;
import java.lang.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
String frase
= "hola hola caracola !"; String nuevaFrase
= frase.
replaceAll(" {2,}",
" ");
System.
out.
println("Antes: " + frase
+ "\nDespués: " + nuevaFrase
); }
}
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