fs.java

此程序是复数的加减乘除运算! 学生不才

import java.io.*;
class Complex
{
  
   float a,b;
   public Complex()
   {
      this.a=0;
      this.b=0;
      
   }
   public Complex(float a,float b)
   {
      this.a=a;
      this.b=b;
      
   }
}
class Operate
{
	  float a,b;
   	public void operate1(Complex c1,Complex c2)
   {
      a=c1.a+c2.a;
      b=c1.b+c2.b;
      System.out.println("两复数相加等于:("+a+","+b+")");
   }
   public void operate2(Complex c1,Complex c2)
   {
      a=c1.a-c2.a;
      b=c1.b-c2.b;
      System.out.println("两复数相减等于:("+a+","+b+")");
   }
   public void operate3(Complex c1,Complex c2)
   {
   	  a=c1.a*c2.a+(-1)*c1.b*c2.b;
   	  b=c1.a*c2.b+c1.b*c2.a;
   	  System.out.println("两复数相乘等于:("+a+","+b+")");
   }
}
public class Fs
{
   public static void main(String args[])throws IOException
   {
      float n1,n2,a1,b1,a2,b2;
      String str1,str2;
      BufferedReader buf=new BufferedReader(new InputStreamReader(System.in));
      System.out.print("请输入第一个复数的实部和虚部:");
      str1=buf.readLine();str2=buf.readLine();
      a1=Float.parseFloat(str1);
      b1=Float.parseFloat(str2);
      System.out.print("请输入第二个复数的实部和虚部:");
      str1=buf.readLine();str2=buf.readLine();
      a2=Float.parseFloat(str1);
      b2=Float.parseFloat(str2);
      Complex c1=new Complex(a1,b1); 
      Complex c2=new Complex(a2,b2);
      Operate p=new Operate();
      p.operate1(c1,c2);
      p.operate2(c1,c2);
      p.operate3(c1,c2);
   }
}