Java error compiling
Hello Everybody!! I have a so called "school homework" and I need help, please. Here is the code:(by the way, if something is wrong with the code tell me): import javax.swing.*;
class Complex{
private double rd, im;
public Complex(){
}
public Complex(double realdel,imagin鋜del){
rd=realdel;
im=imagin鋜del;
}
public void set(double realdel,imagin鋜del){
rd = realdel;
im = imagin鋜del;
}
public Complex add(Complex){
Complex temp = new Complex();
temp = (this.rd + rd) + (this.im + im)*i;
return temp;
}
public Complex sub(Complex){
Complex temp = new Complex();
temp = (this.rd - rd)+(this.im-im)*i;
return temp;
}
public Complex mult(Complex){
Complex temp = new Complex();
temp = (this.rd*rd-this.im*im)+(this.rd*im+this.im*rd)*i;
return temp;
}
public Complex div(Complex){
Complex temp = new Complex();
temp = (this.rd*rd+this.im*im)/(rd*rd+im*im)+(this.im*rd-this.rd*im)*i;
}
public Complex konj(Complex){
Complex temp = new Complex();
temp = temp*(-);
}
public String toString(){
String temp = " " + rd + "" + im;
return temp;
}
}
Command Results:
C:\Documents and Settings\uno\Mina dokument\Programmering C\2006-09-15\Complex.java:11: <identifier> expected
public Complex(double realdel,imagin鋜del){
^
C:\Documents and Settings\uno\Mina dokument\Programmering C\2006-09-15\Complex.java:55: ')' expected
^
2 errors
Tool completed with exit code 1
Thanks in advance.
[1680 byte] By [
Matedoga] at [2007-10-3 5:41:22]
First thing is, when you post code, use the code tags. There's a code button right next to the Spell Check button when you enter text. Just highlight the code, then click on the code button.
> Command Results:
> C:\Documents and Settings\uno\Mina
> dokument\Programmering C\2006-09-15\Complex.java:11:
> <identifier> expected
> public Complex(double realdel,imagin鋜del){
> ^
> ammering C\2006-09-15\Complex.java:55: ')' expected
> ^
> 2 errors
>
> Tool completed with exit code 1
>
> Thanks in advance.
So, when you declare variables in Java, you can do something likedouble realdel, imaginardel;
But, when you are specifying method or constructor parameters, you need to specify the type of each parameter and a variable name for each parameter. So your method declarations (all of them, not just the one on line # 11) should look like this.public Complex(double realdel, double imagin鋜del){
You have to correct most of you method declarations because they do not specify both a type and a variable name.
One suggestion: Don't write a whole bunch of code, then try compiling it. Instead, write some pieces and compile. That way, you don't have a whole bunch of unrelated errors. It will be a lot easier.
> public void Complex(double realdel, double
> imagin鋜del)
> if you don't want it to return anything or
> public double Complex(double realdel, double
> imagin鋜del)
to
> return double etc.
Except "public Complex...." is a constructor so no return value should be specified. I agree that for methods, a return value is needed.
