复数运算代码,Java代码库,德仔网

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【Java】复数运算

作者:空云万里晴 / 发布于2011/9/18/ 944

<div>class Complex{

private float a;//实部
private float b;//虚部

public Complex(){
a=0;
b=0;
}

public Complex(float x,float y){
a=x;
b=y;
}

public float geta(){
return a;
}

public float getb(){
return b;
}

public static void complexAdd(Complex A ,Complex B ,Complex C){//加法
C.a=A.a+B.a;
C.b=A.b+B.b;

}

public static void complexMin(Complex A,Complex B,Complex C){//减法
C.a=A.a-B.a;
C.b=A.b-B.b;

}

public static void complexMul(Complex A,Complex B,Complex C){//乘法
C.a=A.a*B.a-(A.b*B.b);
C.b=A.a*B.b+A.b*B.a;

}

public String toString(){
if(b>=0)
return(new java.text.DecimalFormat("").format(a)+"+"+new java.text.DecimalFormat("").format(b)+"i");
else
return(new java.text.DecimalFormat("").format(a)+new java.text.DecimalFormat("").format(b)+"i"); 
}
}
<div></div>
<div>
public class ComplexTester {
public static void main(String[] args) {

Complex C=new Complex();
Complex A=new Complex(2,3);
Complex B=new Complex(4,5);</div>
<div>System.out.println("复数A：");
System.out.println(A);
System.out.println("复数B：");
System.out.println(B);</div>
<div>Complex.complexAdd(A,B,C);
System.out.print(" \n A+B=");
System.out.println(C);

Complex.complexMin(A, B,C);
System.out.print(" A-B=");
System.out.println(C);

Complex.complexMul( A,B,C);
System.out.print(" A*B=");
System.out.println(C);
}
}
</div>

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