COSC 215 Class notes  1/8/08

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For C++ programs:

To edit:
Run Emacs: Applications -> Programming -> Emacs Text Editor

In Emacs, File -> Open File
add.C

Type in your program

To compile:
Tools -> Compile
Erase "make -k" and type:

g++ add.C -o add

Type y if asked to save your file

To run:
M-x shell (where M-x is Escape x)
./add

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For Java programs:

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One time only:

Edit your .bashrc file:

Run Emacs: Applications -> Programming -> Emacs Text Editor

In Emacs, File -> Open File
.bashrc

Add the following line:

export PATH=/programs/java/jdk1.5.0_07/bin:$PATH

Save the file: File -> Save (current buffer)

Go to a shell buffer:
M-x shell 

Type

source .bashrc
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To edit:
Run Emacs: Applications -> Programming -> Emacs Text Editor

In Emacs, File -> Open File
add.java

Type in your program

To compile:
Tools -> Compile
erase "make -k" (or whatever is there) and type
javac add.java

Type y if asked to save your file

To run:
M-x shell (where M-x is Escape x)
java add
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//add.C
#include <iostream>
#include <iomanip>

using namespace std;

// To compile: g++ add.C -o add

int main(void) {
  // This program will prompt the user to type into two numbers and then
  // will print out the sum.
  int a,b;
  cout << "Enter two numbers> ";
  cin >> a >> b;
  cout << "The sum of " << a << " and " << b << " is " << a + b << endl;
  return 0;
}
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// add.java
class add {
    public static void main(String args[]) {
	int a=1, b=2;
	// Read in two numbers, a and b
	// this space intentionally left blank
	// Print out their sum
	System.out.println("The sum of " + a + " and " + b + " is " + a + b);
    }
}
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