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  1. import java.io.*;
  2. public class Quadratic.java
  3. {
  4. public static void main(String[] args) throws IOException
  5. {
  6. BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  7. String str1,str2,str3;
  8. int a,b,c,d;
  9. double x1,x2;
  10. System.out.println("Enter the value of a,b,c");
  11. str1=br.readLine();
  12. str2=br.readLine();
  13. str3=br.readLine();
  14. a=Integer.parseInt(str1);
  15. b=Integer.parseInt(str2);
  16. c=Integer.parseInt(str3);
  17. d=(b*b)-(4*a*c);
  18. System.out.println(d);
  19. if(d==0)
  20. {
  21. x1=(-b/(2*a));
  22. x2=x1;
  23. System.out.println("Roots are real and equal");
  24. System.out.println("root1="+x1);
  25. System.out.println("root2="+x2);
  26. }
  27. else if(d<0)
  28. {
  29. x1=(-b/(2*a));
  30. x2=(Math.sqrt(-d)/(2*a));
  31. System.out.println("roots are imaginary");
  32. System.out.println("root1="+x1+"+j"+x2);
  33. System.out.println("root2="+x1+"-j"+x2);
  34. }
  35. else if(d>0)
  36. {
  37. x1=((-b)+Math.sqrt(d)/(2*a));
  38. x2=((-b)-Math.sqrt(d)/(2*a));
  39. System.out.println("Roots are real and distinct");
  40. System.out.println("root1="+x1);
  41. System.out.println("root2="+x2);
  42. }
  43. else
  44. {
  45. System.out.println("roots cannot be found");
  46. }
  47. }
  48. } 
  49.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:2: error: '{' expected
public class Quadratic.java
                      ^
1 error
stdout
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Standard output is empty
https://ideone.com/64JDTQ
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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