all you need to do is to store the numbers in another class
help.java
import java.util.Scanner;
import java.util.*;
public class help
{
public static void main(String[] args)
{
int num;
int total=0;
int i=0;
help2[] entries=new help2[100];
int counter=0;
Scanner sc = new Scanner(System.in);
do
{
System.out.print("Input an integer. Input 0 to finalize: ");
num = sc.nextInt();
entries[counter]=new help2(num);
counter++;
if (i==0)
{
total = num;
}
else
{
if (i%2==0)
{
total = total + num;
}
else
{
total = total-num;
}
}
i++;
}
while (num!=0);
System.out.println("The number of input is:" +i);
for(int j=0;j<counter-1;j++){
if (j%2==0)
{
if(j!=counter-2){
System.out.print(entries[j].getNum()+ "-");
}
else{
System.out.print(entries[j].getNum());
}
}else{
if(j!=counter-2){
System.out.print(entries[j].getNum()+ "+");
}
else{
System.out.print(entries[j].getNum());
}
}
}
System.out.println("="+total);
}
}
help2.java
public class help2{
private int num;
public help2(int num){
this.num = num;
}
public void setNum(int num){
this.num=num;
}
public int getNum(){
return this.num;
}
}