Java Training Course/JT04: Difference between revisions
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==Integer Arithmetic== | |||
* Create a file <code>DupInt.java</code> by copying the program <code>DupString.java</code> from [[Java Training Course/JT03|JT03]], rename the class and replace lines 3 to 5 with: | * Create a file <code>DupInt.java</code> by copying the program <code>DupString.java</code> from [[Java Training Course/JT03|JT03]], rename the class and replace lines 3 to 5 with: | ||
int st0 = Integer.parseInt(args[0]); // the 1st argument on the commandline | int st0 = Integer.parseInt(args[0]); // the 1st argument on the commandline | ||
Latest revision as of 09:54, 24 September 2017
Integer Arithmetic
- Create a file
DupInt.javaby copying the programDupString.javafrom 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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