这段程序有什么问题啊?package lee.mypag;
public class Operation
{ double a,b;
public Operation(double A,double B)
{ a=A;b=B;
}
}
public void addition()
{ double sum=a+b;
System.out.println("a+b的值:" +sum);
}
提示‘class' or 'interface' expected
public class Operation
{ double a,b;
public Operation(double A,double B)
{ a=A;b=B;
}
}
public void addition()
{ double sum=a+b;
System.out.println("a+b的值:" +sum);
}
提示‘class' or 'interface' expected
Right Code:
package lee.mypag;
public class Operation
{ double a,b;
public Operation(double A,double B)
{ a=A;b=B;
}public void addition()
{ double sum=a+b;
System.out.println("a+b的值:" +sum);
}}