How to exit the program when Ctrl+D is entered in Java?

Question

Below is a section of my Reverse Polish Calculator.

If an integer is entered, push it to the stack and, if = is pressed, peek the result. However, I want to a

Answer 1

give this code a try. it actually worked for me

// press ctrl+Z(windows) and ctrl+D(mac, linux) for input termination
StringBuilder out = new StringBuilder();
String text = null;
Scanner scanner = new Scanner( System.in );
while( scanner.hasNextLine() )
{
    text = new String( scanner.nextLine() );
    out.append( text );
}
scanner.close();
System.out.println( out );
System.out.println( "program terminated" );