Ruby program to demonstrate the next() function

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num1 = 10;
num2 = -10;
num3 = 15;
num4 = -15;

print "Num1: ",num1.next(),"\n";
print "Num2: ",num2.next(),"\n";
print "Num3: ",num3.next(),"\n";
print "Num4: ",num4.next(),"\n";

 


Output:

Num1: 11
Num2: -9
Num3: 16
Num4: -14

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