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I documented, thanks Norm!

that it goes in the order, anything after 'A' will be calculated

A+b+c+d worked still but,
when I did A+b+x+y it showed this error.
A
+
+
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 23
at com.ecsgrid.testC.main(testC.java:68)

ok, do you know how I would do something this similar in PHP?

Wouldnt I change the ValVarPairs.txt file, so instead of c=10 d=13 I would exchange it with x=10, y=10

yes, thank you so much for all your help.
I really appreciate it

when I try to subtract more then 2 numbers it outputs only the subtraction of the first two numbers.
for example
100.0
5.0
10.0
13.0
Enter letters and operators:
A-A-A-A
-200.0

I think I solved it, what do you think?


package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {

Enter letters and operators:
A+a+a+a
Your input is: A+a+a+a
1res=100.0
2res=105.0
2res=115.0
2res=128.0
128.0

it should be 400 but it still appeared to be 128.0

Enter letters and operators:

Your input is:
1res=100.0
2res=105.0
2res=115.0
2res=128.0
128.0

thats my output in the console.

Can you show me how it is done, when I tried to follow your steps I shows error messages.

package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {
int i = 0,j = 0;
double result, values[] = new double[4];
char k,...

error is below, can u show me the correct way to do this?

Error

Exception in thread "main" java.lang.Error: Unresolved compilation problems:
Syntax error, insert "}" to complete Block...

package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {
int i = 0,j = 0;
double result, values[] = new double[4];
char k, operators[] =...

package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {
int i = 0,j = 0;
double result, values[] = new double[4];
char k, operators[] =...

package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {
int i = 0,j = 0;
double result, values[] = new double[4];
char k, operators[] =...

package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {
int i = 0,j = 0;
double result, values[] = new double[4];
char k, operators[] =...

Enter letters and operators:
A+a+a+a
1res=100.0
2res=100.0

it is suppose to be 400 for the output.

--- Update ---

Also your saying after I put if or else put {} right after?

package com.ecsgrid;

import java.io.*;

public class testC {

public static void main(String[] args) {
int i = 0,j = 0;
double result, values[] = new double[4];
char k, operators[] =...

I still couldnt debug it, do you know why its giving me wrong input?

ok can you give me another example of where I would put the first print statment in my code?

so I would add System.out.println to if (j <= 2) operators[j++] = k;
and
operators[i] = '+'; ?

hi i just started doing java this week :confused:, how would I do a println statment and where would I add it?
thanks

In the console when I did d-c+a+b it gave me 118.0
It was suppose to give me 108

Thank you for your quick reply Norm.

I copied the output I received in Console:

Enter letters and operators:
d-c+a+b
118.0


Is this what you wanted?