output differences

[dukie]

I am trying to understand how the following two output statements are different:
let's say I have two integer variables and their values are:
x = 23;
y = 32;

then I have:
System.out.println(x + ' ' + y)
System.out.println(x + " " + y)

How will they appear differently on the screen?
Can anyone help me understand this?
Will the first display as: 23 32
and the second as: 2332 ?
I appreciate any help.

[Laharl]

Why don't you try printing both and find out? When you've tried it, if you don't understand the output, come back and we'll help you.

[JosAH]

Here's a hint: realize that you're looking at two different operators, both denoted
by the + symbol, i.e. int+char and int+String; int+char promotes the right operand
to an int so int+int will be performed while for int+String the left operand will be
converted to a String and both Strings will be catenated.

kind regards,

Jos

[dukie]

Here's a hint: realize that you're looking at two different operators, both denoted
by the + symbol, i.e. int+char and int+String; int+char promotes the right operand
to an int so int+int will be performed while for int+String the left operand will be
converted to a String and both Strings will be catenated.

kind regards,

Jos

So, if I'm understanding you correctly, in the first line the operator performs addition, i.e. 23+32+32 and in the second line the two strings are joined together, i.e. 2332? (is the space value for the ASCII character added as I indicated in the first line?)

[dukie]

Why don't you try printing both and find out? When you've tried it, if you don't understand the output, come back and we'll help you.

I am unable to run a program yet, as I can't get my programs to compile. I downloaded the Jgrasp but when I try bto compile the program it gives me an error saying that the javac command must be in the path. I have installed the entire program so I don't know why it's doing that. Do I need to import that command? Please bear with me guys, I'm a total newbie but I am trying very hard to learn and really appreciate the help.

[JosAH]

So, if I'm understanding you correctly, in the first line the operator performs addition, i.e. 23+32+32 and in the second line the two strings are joined together, i.e. 2332? (is the space value for the ASCII character added as I indicated in the first line?)

Yep, that's correct.

kind regards,

Jos

[JosAH]

I am unable to run a program yet, as I can't get my programs to compile. I downloaded the Jgrasp but when I try bto compile the program it gives me an error saying that the javac command must be in the path. I have installed the entire program so I don't know why it's doing that. Do I need to import that command? Please bear with me guys, I'm a total newbie but I am trying very hard to learn and really appreciate the help.

It doesn't automagically update your PATH variable: that variable has to contain
the directory where your javac.exe and java.exe are installed. They're both in the
bin directory of your jdk directory (whereever that is stored).

kind regards,

Jos