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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Student{
  6. 	int H;
  7. 	int W;
  8. 	float BMI;
  9. 	String Name;
  10.  
  11. Student(){
  12. 	H=180;
  13. 	W=68;
  14. 	Name="Jack";
  15. }
  16.  
  17. Student(int H,int W){
  18. 	this.H=H;
  19. 	this.W=W;
  20. }
  21. Student(String Name,int H,int W){
  22. 	this.Name=Name;
  23. 	this.H=H;
  24. 	this.W=W;
  25. }
  26. void setName(String Name){
  27. 	this.Name=Name;
  28. }
  29. void show(){
  30. 	System.out.println("學生:"+Name+",身高:"+H+"公分,體重:"+W+"公斤,BMI:"+BMI);
  31. }
  32. void calculate(){
  33. 	BMI=W/((H/100.0f)*(H/100.0f));
  34. }
  35. }
  36.  
  37.  
  38.  
  39. class Ideone
  40. {
  41. 	public static void main (String[] args) throws java.lang.Exception
  42. 	{
  43. 		Student s1 = new Student(173,80);
  44. 		s1.setName="Mary";
  45. 		s1.calculate();
  46. 		s1.show();
  47.  
  48. 		Student s2 = new Student("Jennifer",167,53);
  49. 		s2.calculate();
  50. 		s2.show();
  51.  
  52. 		Student s3 = new Student();
  53. 		s3.calculate();
  54. 		s3.show();
  55.  
  56. 	}
  57. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:44: error: cannot find symbol
		s1.setName="Mary";
		  ^
  symbol:   variable setName
  location: variable s1 of type Student
1 error
stdout
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Standard output is empty
https://ideone.com/wFnpgv
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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