1.华氏温度&摄氏温度
import java.util.Scanner; public class Text1 { public static void main(String[] args) { System.out.println("请输入要转化的摄氏温度："); Scanner s=new Scanner(System.in); //读入摄氏温度 double temp=s.nextDouble(); //计算华氏温度 double fahrenheit=(9.0/5.0)*temp+32; System.out.println("华氏温度为："+fahrenheit); } }
2.计算小费
import java.util.Scanner; public class Text2 { public static void main(String[] args) { System.out.print("请输入一笔费用和酬金率："); Scanner s=new Scanner(System.in); //读入费用 double tips=s.nextDouble(); //读入酬金率 double rate=s.nextDouble(); //计算酬金 double Remuneration=(tips*rate)/100+(tips*rate)%10;//计算酬金 //计算总费用 double cost=tips+Remuneration; System.out.println("酬金为："+Remuneration+"\t"+"总费用为："+cost); } }
3.个位数和
import java.util.Scanner; public class Text3 { public static void main(String[] args) { System.out.println("请输入一个0~1000的数字："); Scanner s = new Scanner(System.in); int i = s.nextInt(); if (i > 0 && i < 1000) { //取百位 int x=i/100; //取十位 int y=i/100%10; //取个位 int z=i%10; System.out.println("个位数相加和为："+x+y+z); }else{ System.out.println("对不起，您输入的数字有误！"); } } }
4.复利值
import java.util.Scanner; public class Text4 { public static void main(String[] args) { System.out.println("请输入存入的金额以及要查询余额月份："); Scanner s=new Scanner(System.in); int dollar=s.nextInt(); int month=s.nextInt(); double cost=0.0; for(int i=1;i<=month;i++){ cost=(dollar+cost)*(1+0.00417); System.out.println("第"+i+"个月后帐户的金额为："+cost); } } }
5.实现二进制转化十进制
import java.util.Scanner; public class Text5 { public static void main(String[] args) { Scanner s=new Scanner(System.in); System.out.print("输入一个二进制数 "); int binaryNumber = s.nextInt(); int decimal = 0; int p = 0; while (true) { if (binaryNumber == 0) { break; } else { int temp = binaryNumber % 10; decimal += temp * Math.pow(2, p); binaryNumber = binaryNumber / 10; p++; } } System.out.println("十进制数为:"+decimal); } }
6.实现十进制转化二进制
import java.util.Scanner; public class Text6 { public static void main(String[] args) { Scanner s=new Scanner(System.in); System.out.print("输入一个十进制数 "); int n = s.nextInt(); String str = ""; while (n != 0) { str = n % 2 + str; n = n / 2; } System.out.println(str); } }
7.两点距离公式
import java.util.Scanner; import static java.lang.Math.*; public class Text7 { public static void main(String[] args) { System.out.print("请输入x1,y1的值："); Scanner s=new Scanner(System.in); double x1=s.nextDouble(); double y1=s.nextDouble(); System.out.print("请输入x2,y2的值："); double x2=s.nextDouble(); double y2=s.nextDouble(); //计算两点间距离 double distance= sqrt(pow((x2-x1),2.0)+pow((y2-y1),2.0) ); System.out.println("两点间距离为"+distance); } }
8.三角形面积
import java.util.Scanner; import static java.lang.Math.pow; import static java.lang.Math.sqrt; public class Text8 { public static void main(String[] args) { System.out.print("请输入x1,y1的值："); Scanner s=new Scanner(System.in); double x1=s.nextDouble(); double y1=s.nextDouble(); System.out.print("请输入x2,y2的值："); double x2=s.nextDouble(); double y2=s.nextDouble(); System.out.print("请输入x3,y3的值："); double x3=s.nextDouble(); double y3=s.nextDouble(); //计算三个边的距离 double edge1= sqrt(pow((x2-x1),2.0)+pow((y2-y1),2.0) ); double edge2= sqrt(pow((x3-x2),2.0)+pow((y3-y2),2.0) ); double edge3= sqrt(pow((x1-x3),2.0)+pow((y1-y3),2.0) ); double e=(edge1+edge2+edge3)/2.0; //三角形面积 double are=sqrt(e*(e-edge1)*(e-edge2)*(e-edge3)); System.out.println("三角形面积为："+are); } }
