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#include <iostream>
using namespace std; // consider removing this line in serious projects
 
int main() {
	int intNum = 0;
 
	cin >> intNum;
	while (intNum != 42) {
		cout << intNum << "\n";
		cin >> intNum;
	}
 
	return 0;
}

Main.java:1: error: illegal character: '#'
#include <iostream>
^
Main.java:1: error: class, interface, or enum expected
#include <iostream>
         ^
Main.java:4: error: class, interface, or enum expected
int main() {
^
Main.java:7: error: class, interface, or enum expected
	cin >> intNum;
	^
Main.java:8: error: class, interface, or enum expected
	while (intNum != 42) {
	^
Main.java:10: error: class, interface, or enum expected
		cin >> intNum;
		^
Main.java:11: error: class, interface, or enum expected
	}
	^
Main.java:14: error: class, interface, or enum expected
}
^
8 errors

Standard output is empty