# Problem: A ball from a certain height of freedom falling, each landing back to the original height of half, and then fall, to the nth landing, the total number of meters? How high is the nth rebound?

Source: Internet
Author: User

`ImportJava.util.Scanner;//title: A ball from the height of 100 meters of freedom falling, each landing back to the original height of half, and then down, to ask it to fall on the 10th time, the total number of meters? How high is the 10th time rebound?  Public classBalltest { Public Static voidMain (string[] args) {DoubleFirsthight; intN; Scanner in=NewScanner (system.in);//read two data from the keyboardSystem.out.println ("Please enter from how many meters fall:"); Firsthight=in.nextdouble (); System.out.println ("Please enter the first few drops:"); N=In.nextint (); System.out.println ("Distance from" +firsthight+ "M" + "+n+" +counttotallong (n,firsthight) + "M"); System.out.println ("+firsthight+" M "+" +n+ "secondary Bounce height" +countheight (n,firsthight) + "M"); }     Public Static DoubleCounttotallong (intNDoubleFirsthight) {//calculate the total path        DoubleTotallong =Firsthight;  for(inti = 0;i<n-1;i++) {Totallong+ = firsthight/(Double) (Math.pow (2, i)); }        returnTotallong; }     Public Static DoubleCountheight (intNDoubleFirsthight) {//calculate the height of each bounce        returnfirsthight/(Double) (Math.pow (2, N)); }}`

Problem: A ball from a certain height of freedom falling, each landing back to the original height of half, and then fall, to the nth landing, the total number of meters? How high is the nth rebound?

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