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How to swap two variables, without using third variable ?

Answer Posted / swamy

class SwapDemo
{
int a,b;
void swap(int a,int b)
{
a=a+b;
b=a-b;
a=a-b;
}
public static void main(String args[])
{
SwapDemo s=new SwapDemo();
s.swap(12,14);
}
}

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