- /* package whatever; // don't place package name! */ 
-   
- import java.util.*; 
- import java.lang.*; 
- import java.io.*; 
-   
- /* Name of the class has to be "Main" only if the class is public. */ 
- class Ideone 
- { 
-   
- 	public static double suma(double n, double m){ 
- 		double suma = n + m; 
- 		return suma; 
- 	} 
-   
- 	static double resta(double n, double m){ 
- 		double resta = n - m; 
- 		return resta; 
- 	} 
-   
- 	static double multiplica(double n, double m){ 
- 		double multiplica = n * m; 
- 		return multiplica; 
- 	} 
-   
- 	static double cuadrado(double n){ 
- 		double-  cuadrado  = Math- . sqrt(10);
 
- 		return cuadrado; 
- 	} 
-   
-      System- . out- . println(- suma (4- ,  10));
 
-      System- . out- . println(- resta (4- ,  10));
 
-      System- . out- . println(- multiplica (4- ,  10));
 
-      System- . out- . println(- cuadrado (10));
 
-   
- 	} 
- } 
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