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How to swap values between two variables without using a
third variable?

Answer Posted / nisay mizrahi

double a,b;
System.out.println("put in 2 numbers");
a=in.nextDouble();
b=in.nextDouble();
if(a>b){
a=a-b;
b=b+a;
a=b-a;

}
else
if(b>a){
b=b-a;
a=a+b;
b=a-b;
}
System.out.println("a is "+a);
System.out.println("b is "+b);
}

}

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