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Arush22 Jan 18th, 2019 92 Never
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  1. Answer to problem 64:
  2. package com.company;
  3.  
  4. public class Point
  5. {
  6.  
  7.     private int x;
  8.     private int y;
  9.     public Point() //Default constructor
  10.     {
  11.         x=0;
  12.         y=0;
  13.     }
  14.     public Point(int x1, int y1) //Default constructor
  15.     {
  16.         x = x1;
  17.         y = y1;
  18.     }
  19.     public void setX(int x1)
  20.     {
  21.         x = x1;
  22.     }
  23.     public void setY(int y1)
  24.     {
  25.         y = y1;
  26.     }
  27.     public int getX()
  28.     {
  29.         return x;
  30.     }
  31.     public int getY()
  32.     {
  33.         return y;
  34.     }
  35.     public void PrintPoint()
  36.     {
  37.         System.out.println("Point p1 = ("+x+","+y+")");
  38.     }
  39.     public double DistanceToOrigin()
  40.     {
  41.         return (Math.sqrt(x*x+y*y));
  42.     }
  43.     public void translatePoint(int dx, int dy)
  44.     {
  45.         x = x + dx;
  46.         y = y + dy;
  47.     }
  48.  
  49. }
  50.  
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  55.  
  56.  
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  63.  
  64.  
  65. package com.company;
  66. import java.text.DecimalFormat;
  67. public class ClientPoint {
  68.     public static void main (String[] args){
  69.  
  70.         Point p1 = new Point();
  71.  
  72.         Point p2 = new Point();
  73.  
  74.         DecimalFormat distanceFormat = new DecimalFormat("#0.00");
  75.         System.out.println(" The distance is "+distanceFormat.format(p2.DistanceToOrigin()));
  76.  
  77.         p1.PrintPoint();
  78.  
  79.         double distance = p1.DistanceToOrigin();
  80.         System.out.println(distance);
  81.  
  82.         p2.setX(-3);
  83.         Point p3 = new Point();
  84.         p3.setX(p2.getX()); // set value of p3 to p2.
  85.  
  86.         p3.translatePoint(3,4);
  87.         p3.PrintPoint();
  88.  
  89.     }
  90. }
  91.  
  92.  
  93.  
  94. Answer to problem 67.
  95. package com.company;
  96. /*
  97.    Arush Adabala
  98.    1/15/2019
  99.    Reads and states sentence types
  100.  */
  101. import java.util.*;
  102. import java.lang.*;
  103.  
  104. public class Decrypter {
  105.     public static void main(String[] args)
  106.     {
  107.         Scanner input = new Scanner(System.in);
  108.         System.out.println("Please type a string with nine characters or more below");
  109.         String sentence = input.next();
  110.  
  111.         char character1 = sentence.charAt(0); // reads first char
  112.         char character2 = sentence.charAt(2); // reads third char
  113.         char character3 = sentence.charAt(4); // reads fifth char
  114.         char character4 = sentence.charAt(6); // reads seventh char
  115.         char character5 = sentence.charAt(8); // reads ninth char
  116.         int stringlength = sentence.length();
  117.  
  118.         if(stringlength>=9){
  119.             System.out.println(character1+character2+character3+character4+character5);
  120.         }
  121.         else{
  122.             System.out.println("invalid input.");
  123.         }
  124.     }
  125. }
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