java编写复数
public class Complex {
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/**成员属性定义实部和虚部
*@param real_part 实部
*@param imagin_part 虚部
*/
private double real_part;
private double imagin_part;
//构造方法，初始化
public Complex() {
this(0.0,0.0);
}
//构造方法的重载
public Complex(double real_part, double imagin_part) {
this.real_part = real_part;
this.imagin_part = imagin_part;
}
//取得实部
public void getReal_part(double real_part) {
this.real_part = real_part;
}
//取得虚部
public void getImagin_part() {
this.imagin_part = imagin_part;
}
//复数自加
public Complex addComplex(Complex c) {
this.real_part += c.real_part;
this.imagin_part += c.imagin_part;
return this;
}
//复数自减
public Complex decComplex(Complex c) {
this.real_part -= c.real_part;
this.imagin_part -= c.imagin_part;
return this;
}
//定义输出格式
public String toString() {
//按照虚部正负，不同显示
if(this.imagin_part =0)
return this.real_part + "+" + this.imagin_part + "i";
return this.real_part + "-" + this.imagin_part + "i";
}
}
//测试类
class TestComplex {
public static void main(String[] args) {
//一个c1复数对象
Complex c1 = new Complex(1.0,1.0);
//输出自加结果
c1.addComplex(c1);
System.out.println(c1.toString());
//输出自减结果
c1.decComplex(c1);
System.out.println(c1.toString());
}
}
用java编译一个复数Complex程序，满足以下条件：（越快越好，有加分）
public class Complex {
private Integer realPart;
private Integer imaginPart;
public Complex(){
this.realPart = 0;
this.imaginPart = 0;
}
public Complex(int r,int i){
this.realPart = r;
this.imaginPart = i;
}
public Complex complexAdd(Complex a){
Complex c = new Complex();
c.setImaginPart((this.imaginPart+a.imaginPart)%10);
c.setRealPart(this.realPart+a.realPart+(this.imaginPart+a.imaginPart)/10);
return c;
}
public String toString(){
return this.realPart+"+"+this.imaginPart+"i";
}
public Integer getRealPart() {
return realPart;
}
public void setRealPart(Integer realPart) {
this.realPart = realPart;
}
public Integer getImaginPart() {
return imaginPart;
}
public void setImaginPart(Integer imaginPart) {
this.imaginPart = imaginPart;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Complex c1 = new Complex(1,20); //1+2i
Complex c2 = new Complex(3,40); //3+4i
System.out.println(c1.toString()+" + "+c2.toString()+" = "+c1.complexAdd(c2).toString());
}
}
用java 编写一个复数类
public class Complex {
protected int a;
protected int b;
public Complex(int a, int b) {
this.a = a;
this.b = b;
}
public String toString() {
return this.a + " + " + this.b + "i";
}
public static Complex addition(Complex complex1, Complex complex2) {
int a = complex1.a + complex2.a;
int b = complex1.b + complex2.b;
return new Complex(a, b);
}
public static Complex subtract(Complex complex1, Complex complex2) {
int a = complex1.a - complex2.a;
int b = complex1.b - complex2.b;
return new Complex(a, b);
}
public static Complex multiplication(Complex complex1, Complex complex2) {
int a = complex1.a * complex2.a - complex1.b * complex2.b;
int b = complex1.b * complex2.a + complex1.a * complex2.b;
return new Complex(a, b);
}
public static Complex division(Complex complex1, Complex complex2) throws Exception {
if (complex2.a == 0) {
throw new Exception("complex2.a is 0");
}
if (complex2.b == 0) {
throw new Exception("complex2.b is 0");
}
int a = (complex1.a * complex2.a + complex1.b * complex2.b) / (complex2.a * complex2.a + complex2.b * complex2.b);
int b = (complex1.b * complex2.a - complex1.a * complex2.b) / (complex2.a * complex2.a + complex2.b * complex2.b);
return new Complex(a, b);
}
}
//测试用的类
public class ComplexTest {
public static void main(String[] args) throws Exception{
// TODO Auto-generated method stub
Complex complex1 = new Complex(1, 2);
Complex complex2 = new Complex(3, 4);
System.out.println(complex1 + " + " + complex2 + " = " + Complex.addition(complex1, complex2));
System.out.println(complex1 + " - " + complex2 + " = " + Complex.subtract(complex1, complex2));
System.out.println(complex1 + " x " + complex2 + " = " + Complex.multiplication(complex1, complex2));
System.out.println(complex1 + " / " + complex2 + " = " + Complex.division(complex1, complex2));
}
}
用java编写一个复数类，包含实部和虚部属性，还有复数相加、相减以及复数的求模、输出复数字符串”a+bi”
import java.util.*;
public class ComplexTest{
static class ComplexNumber{
private double real,image;
public ComplexNumber(){
this(0.0,0.0);}
public ComplexNumber(double a,double b){
real=a;image=b;
}
public ComplexNumber add(ComplexNumber x){
return new ComplexNumber(real+x.real,image+x.image);}
public ComplexNumber sub(ComplexNumber x){
return new ComplexNumber(real-x.real,image-x.image); }
public ComplexNumber mul(ComplexNumber x){
return new ComplexNumber(real*x.real-image*x.image,real*x.image+image*x.real);}
public ComplexNumber div(ComplexNumber x){
if(x.real==0x.image==0){
System.out.println("无法进行除法！");
return new ComplexNumber();}
else return new ComplexNumber((real*x.real+image*x.image)/(x.real*x.real+x.image*x.image)
,(image*x.real-real*x.image)/(x.real*x.real+x.image*x.image));}
public double getReal (){return real;}
public double getImage (){return image;}
public void show(){System.out.println(this.toString());}
public String toString(){
if(image0)return ""+real+image+"i";
else return ""+real+"+"+image+"i";
}
}
static class Test{
public Test(){
Scanner sr=new Scanner(System.in);
ComplexNumber a,b,c;
try{System.out.println("请输入第一个实部和虚部：");
a=new ComplexNumber(sr.nextDouble(),sr.nextDouble());
System.out.println("请输入第二个实部和虚部：");
b=new ComplexNumber(sr.nextDouble(),sr.nextDouble());
System.out.print("第一个复数：");a.show();
System.out.print("第二个复数：");b.show();
c=a.add(b);
System.out.print("两个复数的和：");c.show();
c=a.sub(b);
System.out.print("两个复数的差：");c.show();
c=a.mul(b);
System.out.print("两个复数的积：");c.show();
c=a.div(b);
System.out.print("两个复数的商：");c.show();
}
catch(InputMismatchException e){
System.out.println("输入有误！");}
}
}
public static void main(String[] args){
new Test();
}
}
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