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Jun 29th, 2017
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Java 0.41 KB | None | 0 0
  1. public boolean ehInteiro( String s ) {  
  2.    
  3.      // cria um array de char  
  4.      char[] c = s.toCharArray();  
  5.      boolean verifica = true;  
  6.    
  7.      for ( int i = 0; i < c.length; i++ )  
  8.          // verifica se o char não é um dígito  
  9.          if ( !Character.isDigit( c[ i ] ) ) {  
  10.              verifica = false;  
  11.              break;  
  12.          }  
  13.      }  
  14.    
  15.      return verifica;  
  16.    
  17.  }
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