第二章作业.
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2.6
import java.until.Scanner;
public class ComputeArea{
public static void main(String[] args){
Scanner input =new Scanner(System.in);
System.out.print("Enter a number between 0 and 1000: ");
double digits =input.nextDouble();
double sun =digits+digits+digits+digits;
System.out.println("the sun of the digits " + digits +"is" +sun);
}
}
2.15
import java.until.Scanner;
public class ComputeDistance{
public static void main(String[] args){
Scanner input =new Scanner(System.in);
System.out.print("Enter x1 and y1 : ");
System.out.print("Enter x2 and y2: ");
double point =input.nextDouble();
double number =(x2-x1)(x2-x1)+(y2-y1)(y2-y1);
double distance =Math.pow(number,0.5);
System.out.println("the distance between the two points " + points+"is" +distance);
}
}
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