谭杰希《珍珠奶茶》歌词

《Bubble tea》（珍珠奶茶） 词Geo，杰希 曲杰希 I saw you smiling at me was it real or just a fantasy maybe in time you would know you could know how I feel N I saw you stumbling at me such a funny silly crazy girl maybe in time you would know you could know how I feel You and I, I testify, with no one else will I feel so fine I just want you by my side and I sing for you tonight We drinking the milktea making bubbles fly across the street here comes a cop so we run then we run dont get caught, wont be fun! You and I, I testify with no one else will I feel so fine I just want you by my side and I, I ll be there for you tonight.

java编程-----M个数内选N个互不重复数的所有排列组合

import java.applet.applet;

import java.awt.button;

import java.awt.label;

import java.awt.textfield;

import java.awt.event.actionevent;

import java.awt.event.actionlistener;

public class complextest extends applet implements actionlistener{

label firstreal, firstimg;

textfield firstrealnum, firstimgnum;

label secondreal, secondimg;

textfield secondrealnum, secondimgnum;

button add = new button(add);

button subtract = new button(subtract);

textfield addresult, subtractresult;

public void init(){

firstreal = new label(first complex real number: );

firstrealnum = new textfield(7);

super.add(firstreal);

super.add(firstrealnum);

firstimg = new label(first complex imaginary number: );

firstimgnum = new textfield(7);

super.add(firstimg);

super.add(firstimgnum);

secondreal = new label(second complex real number: );

secondrealnum = new textfield(7);

super.add(secondreal);

super.add(secondrealnum);

secondimg = new label(second complex imaginary number: );

secondimgnum = new textfield(7);

super.add(secondimg);

super.add(secondimgnum);

super.add(add);

addresult = new textfield(7);

super.add(addresult);

super.add(subtract);

subtractresult = new textfield(7);

super.add(subtractresult);

add.addactionlistener(this);

subtract.addactionlistener(this);

}

public void actionperformed(actionevent e) {

double firstcomplxreal = double.parsedouble(firstrealnum.gettext());

double firstcomplximg = double.parsedouble(firstimgnum.gettext());

double secondcomplxreal = double.parsedouble(secondrealnum.gettext());

double secondcomplximg = double.parsedouble(secondimgnum.gettext());

complexnumber complxnum1 = new complexnumber(firstcomplxreal, firstcomplximg);

complexnumber complxnum2 = new complexnumber(secondcomplxreal, secondcomplximg);

addresult.settext(complxnum1.add(complxnum2).tostring());

subtractresult.settext(complxnum1.subtract(complxnum2).tostring());

}

}

class complexnumber{

private double real;

private double imaginary;

public complexnumber(double realnum, double imaginarynum){

this.real = realnum;

this.imaginary = imaginarynum;

}

// (a+bi) + (c+di) = (a+b) + (c+d)i

public complexnumber add(complexnumber complexnum2){

double newrealpart = this.real + complexnum2.getreal();

double newimgpart = this.imaginary + complexnum2.getimaginary();

return new complexnumber(newrealpart, newimgpart);

}

//(a+bi) - (c+di) = (a-b) - (c-d)i

public complexnumber subtract(complexnumber complexnum2){

double newrealpart = this.real - complexnum2.getreal();

double newimgpart = this.imaginary - complexnum2.getimaginary();

return new complexnumber(newrealpart, newimgpart);

}

public double getimaginary() {

return imaginary;

}

public void setimaginary(double imaginary) {

this.imaginary = imaginary;

}

public double getreal() {

return real;

}

public void setreal(double real) {

this.real = real;

}

public string tostring(){

return real + + + imaginary + i;

}

}