java语言程序设计基础篇第十版课后答案
第一章 1.1 public class Test public static void main(String args) System.out.println("Welcome to Java !"); System.out.println("Welcome to Computer Science !"); System.out.println("Programming is fun ."); 1.2 public class Test public static void main(String args) for(int i = 0;i <= 4;i+) System.out.println("Welcome to Java !"); 1.3 public class Test public static void main(String args) System.out.println(" "); System.out.println(" "); System.out.println(" "); System.out.println(" "); public class Test public static void main(String args) System.out.println(" A"); System.out.println(" A A"); System.out.println(" AAAAA"); System.out.println("A A"); public class Test public static void main(String args) System.out.println("V V"); System.out.println(" V V"); System.out.println(" V V"); System.out.println(" V"); 1.4 public class Test public static void main(String args) System.out.println("a a2 a3"); System.out.println("1 1 1"); System.out.println("2 4 8"); System.out.println("3 9 27"); System.out.println("4 16 64"); 1.5 public class Test public static void main(String args) System.out.println(9.5*4.5-2.5*3)/(45.5-3.5); 1.6 public class Test public static void main(String args) int i = 1,sum = 0; for(;i <= 9;i+) sum += i; System.out.println(sum); 1.7 public class Test public static void main(String args) System.out.println(4*(1.0-1.0/3+1.0/5-1.0/7+1.0/9-1.0/11); System.out.println(4*(1.0-1.0/3+1.0/5-1.0/7+1.0/9-1.0/11+1.0/13); 1.8 public class Test public static void main(String args) final double PI = 3.14; double radius = 5.5; System.out.println(2 * radius * PI); System.out.println(PI * radius * radius); 1.9 public class Test public static void main(String args) System.out.println(7.9 * 4.5); System.out.println(2 * (7.9 + 4.5); 1.10 public class Test public static void main(String args) double S = 14 / 1.6; double T = 45 * 60 + 30; double speed = S / T; System.out.println(speed); 1.11 public class Test public static void main(String args) int BN = 312032486; /original person numbers double EveryYS,EveryYBP,EveryYDP,EveryYMP; EveryYS = 365 * 24 * 60 * 60; EveryYBP = EveryYS / 7; EveryYDP = EveryYS / 13; EveryYMP = EveryYS / 45; int FirstYP,SecondYP,ThirdYP,FourthYP,FivthYP; FirstYP = (int)(BN + EveryYBP + EveryYMP - EveryYDP); SecondYP = (int)(FirstYP + EveryYBP + EveryYMP - EveryYDP); ThirdYP = (int)(SecondYP + EveryYBP + EveryYMP - EveryYDP); FourthYP = (int)(ThirdYP + EveryYBP + EveryYMP - EveryYDP); FivthYP = (int)(FourthYP + EveryYBP + EveryYMP - EveryYDP); System.out.println(FirstYP); System.out.println(SecondYP); System.out.println(ThirdYP); System.out.println(FourthYP); System.out.println(FivthYP); 1.12 public class Test public static void main(String args) double S = 24 * 1.6; double T = (1 * 60 + 40) * 60 + 35; double speed = S / T; System.out.println(speed); 1.13 import java.util.Scanner; public class Test public static void main(String args) Scanner input = new Scanner(System.in); System.out.println("input a,b,c,d,e,f value please:"); double a = input.nextDouble(); double b = input.nextDouble(); double c = input.nextDouble(); double d = input.nextDouble(); double e = input.nextDouble(); 第二章package cn.Testcx; import java.util.Scanner; public class lesson2 public static void main(String args) SuppressWarnings("resource") Scanner input =new Scanner(System.in); System.out.print("请输入一个摄氏温度： "); double Celsius =input.nextDouble(); double Fahrenheit =(9.0/5)*Celsius+32; System.out.println("摄氏温度："+Celsius+"度 "+"转换成华氏温度为："+Fahrenheit+"度"); System.out.print("请输入圆柱的半径和高： "); double radius =input.nextDouble(); int higth = input.nextInt(); double areas =radius*radius*Math.PI; double volume =areas*higth; System.out.println("圆柱体的面积为："+areas); System.out.println("圆柱体的体积为："+volume); System.out.print("输入英尺数："); double feet =input.nextDouble(); double meters =feet*0.305; System.out.println(feet+"英尺转换成米："+meters); System.out.print("输入一个磅数："); double pounds =input.nextDouble(); double kilograms =pounds*0.454; System.out.println(pounds+"磅转换成千克为："+kilograms); System.out.println("输入分钟数："); long minutes =input.nextInt(); long years =minutes/(24*60*365); long days = (minutes%(24*60*365)/(24*60); System.out.println(minutes+"分钟"+"有"+years+"年和"+days+"天"); long totalCurrentTimeMillis =System.currentTimeMillis(); long totalSeconds =totalCurrentTimeMillis/1000; long currentSeconds =totalSeconds%60; long totalMinutes =totalSeconds/60; long currentMinutes =(totalSeconds%(60*60)/60; long currenth
