「java复数输出」java计算复数的模
本篇文章给大家谈谈java复数输出，以及java计算复数的模对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：
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();
}
}
Java中的怎么输入一组复数,并打印出来
public static void main(String[] ar) throws IOException {
System.out.print("Enter a Char,only accept one character at a time:");
char i = (char) System.in.read();
System.out.println("your char is :" + i);
System.out.println("your char is :" + (int) i);
}
还有++和--如果用用数字打印的话是出来什么数字呢
43 和45
你可以输入后就会打印出来了
JAVA编程 实现一个复数类 急！！
import java.io.*;
class complex{
//复数类
public float realPart;
public float imagPart;
}
public class Main extends complex{
public static String readString(){
//从键盘读取字符串
BufferedReader br=new BufferedReader(new InputStreamReader(System.in),1);
String s1="";
try{
s1=br.readLine();
}catch(IOException ex){
System.out.println(ex);
}
return s1;
}
public static float readFloat(){
//字符串转换为浮点数
return Float.parseFloat(readString());
}
public static char plus(float r1,float r2,float i1,float i2){
//实现复数相加并输出
complex sum=new complex();
sum.imagPart=i1+i2;
sum.realPart=r1+r2;
if(sum.imagPart0){
//解决虚部为负时同时显示+ -号问题
sum.imagPart=-sum.imagPart;
System.out.println("两数相加="+sum.realPart+"-"+sum.imagPart+"i");
return 'f';
}
System.out.println("两数相加="+sum.realPart+"+"+sum.imagPart+"i");
return 'z';
}
public static char minus(float r1,float r2,float i1,float i2){
//实现复数相减并输出
complex cha=new complex();
cha.imagPart=i1-i2;
cha.realPart=r1-r2;
if(cha.imagPart0){
//解决虚部为负时同时显示+ -号问题
cha.imagPart=-cha.imagPart;
System.out.println("两数相减="+cha.realPart+"-"+cha.imagPart+"i");
return 'f';
}
System.out.println("两数相减="+cha.realPart+"+"+cha.imagPart+"i");
return 'z';
}
public static void main(String[] args) {
//主方法
complex a=new complex();
complex b=new complex();
System.out.println("输入第一个复数...");
System.out.print("\n实部=");
a.realPart=Main.readFloat();
System.out.print("虚部=");
a.imagPart=Main.readFloat();
System.out.println("\n输入第二个复数...");
System.out.print("\n实部=");
b.realPart=Main.readFloat();
System.out.print("虚部=");
b.imagPart=Main.readFloat();
System.out.println("\n");
Main.plus(a.realPart,b.realPart,a.imagPart,b.imagPart);
Main.minus(a.realPart,b.realPart,a.imagPart,b.imagPart);
}
}
以前做的 可以实现复数加减法。因为浮点数精度问题，输出可能会有点误差
java复数输出的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于java计算复数的模、java复数输出的信息别忘了在本站进行查找喔。
发布于：2022-12-08，除非注明，否则均为原创文章，转载请注明出处。