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How to swap two variables, without using third variable ?
Answers were Sorted based on User's Feedback
Answer / saddi srikanth
if x=14, y=18
x=x+y;
now x=14+18=32;
y=x-y;
now y=32-18=14;
now again y=14
x=x-y;
now x=32-14=18
final answer is:
x=18, and y=14
u can try this formule by taking any values for x and y.
| Is This Answer Correct ? | 4 Yes | 5 No |
Answer / avanthi kothakonda
i want to swapping without using any third variable and
opartion
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / mohit prakash saxena
2 answer will not work if the value of a is +ve and b is negative try for a=2 and b=-2
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / 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);
}
}
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / mujtaba
answer 1 is the right 1:i.e
a=a+b;
b=a-b;
a=a-b;
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / mahesh
class swap_two_verible_use
{
public static void main(String args[])
{
int a=50;
int b=20;
System.out.println("A = "+a);
System.out.println("B = "+b);
System.out.println("-----------------");
System.out.println("After swiping");
a=a+b;
b=a-b;
a=a-b;
System.out.println("A = "+a);
System.out.println("B = "+b);
}
}
| Is This Answer Correct ? | 1 Yes | 2 No |
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C Code 
