Create a new project called Trunc.java . Trunc.java should loop around getting floating point (i.e. type double) numbers and displaying both the number and the running total to the nearest whole number. The program will finish when a number is entered outside of the range -100 to 100. The program should use methods to check whether the number is in this range, and then rounded to the nearest whole number. (NOTE: Not to use the JAVA Round method, write own method by modifying the calcTwoDPs method in TwoDPs.java). //TwoDPs.java //Displays running total of numbers in lines of standard input correct to two decimal places. //Uses an out of range number (<-100 or >100) to quit. import java.util.Scanner; public class TwoDPs { public static void main(String[] args) { Scanner input = new Scanner(System.in); double total = 0; boolean flag = true; System.out.println("Use an out of range entry (< -100 or > 100) to quit."); while (flag) { System.out.println("Enter a floating point number on a line:"); double d = input.nextDouble(); if (outOfRange(d)) { flag = false; } else { dispTwoDPs("The number value is", d); total = total + d; dispTwoDPs("The total is", total); System.out.println(); System.out.println("Next."); }//end of else }//end of while System.out.println("You quit."); }//end of main static boolean outOfRange(double d) { if (d < -100) { return true; } if (d > 100) { return true; } return false; } static void dispTwoDPs(String msg, double num) { // Display on screen the message msg followed by num // correct to two decimal places with both decimal // values showing even if they are zero //record whether the number is negative boolean neg = (num < 0); //make a positive version of the number double posNum = num; if (neg) { posNum = -num; } //add 0.005 to the posNum, so that //truncating nPlus is equivalent to //rounding posNum double nPlus = posNum + 0.005; //extract whole number part and the rest int whole = (int) nPlus; double rest = nPlus - whole; //multiply the rest by 100 //truncate, cast and make sure there //are some zeros in front of small numbers int temp = (int) (100.0 * rest + 100.0); //make a string version of temp String ss = "" + temp; int len = ss.length(); String sign = ""; if (neg) { sign = "-"; } //display the message, sign, whole part //and last two digits of ss System.out.println(msg + " " + sign + whole + "." + ss.substring(len - 2, len)); }//end of DispTwoDPs }//end of class

Create a new project called Trunc.java . Trunc.java should
loop around getting floating point (i.e. type double) numbers and displaying
both the number and the running total to the nearest whole number. The
program will finish when a number is entered outside of the range -100 to
100. The program should use methods to check whether the number is in this
range, and then rounded to the nearest whole number. (NOTE: Not to
use the JAVA Round method, write own method by modifying the
calcTwoDPs method in TwoDPs.java).

//TwoDPs.java
//Displays running total of numbers in lines of standard input correct to two decimal places.
//Uses an out of range number (<-100 or >100) to quit.

import java.util.Scanner;

public class TwoDPs {

public static void main(String[] args) {
Scanner input = new Scanner(System.in);
double total = 0;
boolean flag = true;
System.out.println("Use an out of range entry (< -100 or > 100) to quit.");
while (flag) {
System.out.println("Enter a floating point number on a line:");
double d = input.nextDouble();
if (outOfRange(d)) {
flag = false;
} else {
dispTwoDPs("The number value is", d);
total = total + d;
dispTwoDPs("The total is", total);
System.out.println();
System.out.println("Next.");
}//end of else
}//end of while
System.out.println("You quit.");
}//end of main

static boolean outOfRange(double d) {
if (d < -100) {
return true;
}
if (d > 100) {
return true;
}
return false;
}

static void dispTwoDPs(String msg, double num) {
// Display on screen the message msg followed by num
// correct to two decimal places with both decimal
// values showing even if they are zero
//record whether the number is negative
boolean neg = (num < 0);
//make a positive version of the number
double posNum = num;
if (neg) {
posNum = -num;
}
//add 0.005 to the posNum, so that //truncating nPlus is equivalent to //rounding posNum
double nPlus = posNum + 0.005;
//extract whole number part and the rest
int whole = (int) nPlus;
double rest = nPlus - whole;
//multiply the rest by 100
//truncate, cast and make sure there
//are some zeros in front of small numbers
int temp = (int) (100.0 * rest + 100.0);
//make a string version of temp
String ss = "" + temp;
int len = ss.length();
String sign = "";
if (neg) {
sign = "-";
}
//display the message, sign, whole part //and last two digits of ss
System.out.println(msg + " " + sign + whole + "." + ss.substring(len - 2, len));
}//end of DispTwoDPs

}//end of class