java語言程序設(shè)計基礎(chǔ)篇第十版課后答案第二章答案

1、packagecn.Testcx;importjava.util.Scanner;publicclasslesson2publicstaticvoidmain(Stringargs)SuppressWarnings("resource")Scannerinput=newScanner(System.in);System.out.print("請輸入一個攝氏溫度：");doubleCelsius=input.nextDouble();doubleFahrenheit=(9.0/5)*Celsius+32;System.out.println("攝

2、氏溫度："+Celsius+"度"+"轉(zhuǎn)換成華氏溫度為："+Fahrenheit+"度");System.out.print("請輸入圓柱的半徑和高：");doubleradius=input.nextDouble();inthigth=input.nextInt();doubleareas=radius*radius*Math.PI;doublevolume=areas*higth;System.out.println("圓柱體的面積為："+areas);System.out.pri

3、ntln("圓柱體的體積為："+volume);System.out.print("輸入英尺數(shù)：");doublefeet=input.nextDouble();doublemeters=feet*0.305;System.out.println(feet+"英尺轉(zhuǎn)換成米："+meters);System.out.print("輸入一個磅數(shù)：");doublepounds=input.nextDouble();doublekilograms=pounds*0.454;System.out.println(pound

4、s+"磅轉(zhuǎn)換成千克為："+kilograms);System.out.println("輸入分鐘數(shù)：");longminutes=input.nextInt();longyears=minutes/(24*60*365);longdays=(minutes%(24*60*365)/(24*60);System.out.println(minutes+"分鐘"+"有"+years+"年和"+days+"天)longtotalCurrentTimeMillis=System.current

5、TimeMillis();longtotalSeconds=totalCurrentTimeMillis/1000;longcurrentSeconds=totalSeconds%60;longtotalMinutes=totalSeconds/60;longcurrentMinutes=(totalSeconds%(60*60)/60;longcurrenthours=(totalMinutes/60)%24;System.out.print("輸入時區(qū)偏移量：");bytezoneOffset=input.nextByte();"+currentMinutes

6、+" 分longcurrentHour=(currenthours+(zoneOffset*1)%24;System.out.println("當期時區(qū)的時間為："+currentHour+"時"+currentSeconds+"秒");System.out.print("請輸入v0,v1,t:");doublev0=input.nextDouble();doublev1=input.nextDouble();doublet=input.nextDouble();floata=(float)(v1-v0)

7、/t);");System.out.println（"輸入水的重量、初始溫度、最終溫度：doublewater=input.nextDouble();doubleinitialTemperature=input.nextDouble();doublefinalTemperature=input.nextDouble();doubleQ=water*(finalTemperature-initialTemperature)*4184;System.out.println("所需熱量為："+Q);System.out.print("輸入年數(shù)：&qu

8、ot;);intnumbers=input.nextInt();longoneYearsSecond=365*24*60*60;Longpopulation=(long)(312032486+(oneYearsSecond/7.0)+(oneYearsSecond/45.0)-(oneYearsSecond/13.0)*numbers);System.out.println("第"+numbers+”年后人口總數(shù)為："+population);System.out.print("輸入速度單位m/s和加速度a單位m/s2:");doublev=i

9、nput.nextDouble();doublea1=input.nextDouble();doublelengthOfAirplane=(Math.pow(v,2)/(2*a1);System.out.println("最短長度為："+lengthOfAirplane);System.out.print("輸入存入的錢：");doublemoney=input.nextInt();doublemonthRate=5.0/1200;for(inti=1;i<7;i+)doubletotal=money*(Math.pow(1+monthRate,i

10、);System.out.println("第"+i+”個月的錢為："+total);告訴我書上的銀行在哪里，我要去存錢，半年本金直接翻6倍、System.out.print（"用戶請輸入身高（英寸）、體重（磅）:"）;doubleheight=input.nextDouble();doubleweight=input.nextDouble();doubleBMI=(weight*0.45359237)/(Math.pow(height*0.0254),2);System.out.println("BMI的值為"+BMI);

11、System.out.print("輸入x1和y1:");System.out.print("輸入x2和y2:");doublex1=input.nextDouble();doubley1=input.nextDouble();doublex2=input.nextDouble();doubley2=input.nextDouble();doublepoint1=Math.pow(x2-x1),2);doublepoint2=Math.pow(y2-y1),2);doubledistance=Math.pow(point1+point2),(1.0/2);/也可以Math.pow(point1+point2),0.5)System.out.println("兩點間的距離為："+