Java Training Course/JT04

Integer Arithmetic

• Create a file DupInt.java by copying the program DupString.java from JT03, rename the class and replace lines 3 to 5 with:

       int st0 = Integer.parseInt(args[0]); // the 1st argument on the commandline
       int st1 = Integer.parseInt(args[1]); // the 2nd ...
       int st2 = st0 + st1;

• Compile
• Predict the output of:

java DupInt 2 4
java DupInt 2 -4
java DupInt 0 -1

• Bonus question: What will happen if you run the program without any argument?

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