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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class GraphicApp
  6. {
  7.    public static Double scanDouble( Scanner in )
  8.    {
  9. 	   return ( ( in.hasNextDouble() ) ? in.nextDouble() : null );
  10.    }
  11.  
  12.    public static void main( String[] args )
  13.    {
  14.  
  15.       // ќбъ¤вление переменных a, y, k, b типа double дл¤ хранени¤ данных
  16.       double a;
  17.       double y;	
  18.       double k;
  19.       double b;	
  20.  
  21.       Scanner in = new Scanner(System.in);
  22.  
  23.       a = scanDouble( in );
  24.  
  25.       in.close(); 
  26.  
  27.       // ¬ычисление и вывод результата по формуле с предварительным сравнением значени¤ а,
  28.       if( a <= 0 )
  29.       { k = -1; b = 0; }
  30.       else if ( a <= 1 )
  31.       { k = 1; b = 0; }
  32.       else if ( a < 2 )
  33.       { k = 0; b = 1; }
  34.       else 
  35.       { k = -2; b = 5; }
  36.       y = k*a + b;
  37.  
  38.       System.out.printf("result is %f\n", y);
  39.    }
  40. }
  41.  
Success #stdin #stdout 0.16s 321344KB
comments (?)
stdin
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Standard input is empty
stdout
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result is 0.000000
https://ideone.com/e6UFys
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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