java语言程序设计基础篇第二章程序练习题答案

java语言程序设计基础篇第二章程序

练习题答案12.1（将摄氏温度转化为华氏温度）importjava.util.*;publicclasstest{publicstaticvoidmain(String[] args){//TODGAuto-generatedmethodstubScannerinput=newScanner(System.in);System.out.print("Enteradegreeincelsius:"double);Celsius=input.nextDouble();doubleFahrenheitFahrenheit=(9.0/5)*Celsius+32;System.out.println(Celsius+"Celsiusis"Fahrenheit+"Fahrenheit");}(计算圆柱体的体积)importjava.util.*;publicclasstest{2publicstaticvoidmain(String[] args){IITODGAuto-generatedmethodstubScannerinput=newScanner(System.in);System.out.print("Entertheradiusandlengthofacylinder:" );doubleradius=input.nextDouble();doublelength二input.nextDouble();doublearea=radius*radius*Math.PI;doublevolume=area*length;System.out.println("Theareais" +area);System.out.println("Thevolumeis" +volume);}}(将英尺转换为米)importjava.util.Scanner;publicclasstest{publicstaticvoidmain(String[] args){3//TODGAuto-generatedmethodstubSeannerinput=newSeanner(System.in);System.out.print("Enteravalueforfeet:" );doublefeet=input.nextDouble();doublemeters=feet*0.305;System.out.println(feet+"feetis" +meters+"meters");}(将磅转换为千克)importjava.util.Seanner;publicclasstest{publicstaticvoidmain(String[] args){//TODOAuto-generatedmethodstubScannerinput=newScanner(System.in);System.out.print("Enteranumberinpounds:" );doublepounds=input.nextDouble();doublekilograms=pounds*0.454;4System.out.println(pounds+"poundsis" +kilograms+"kilograms");}(财务应用程序：计算消费)importjava.util.Scanner;publicclasstest{publicstaticvoidmain(String[] args){//TODGAuto-generatedmethodstubScannerinput=newScanner(System.in);System.out.print("Enterthesubtotalandgratuityrate:");doublesubtotal=input.nextDouble();doubleGratuity=input.nextDouble();doublegratuity|=subtotal*Gratuity*0.01;doubletotal=gra