Question

Write a QBASIC program to exchange the values of two variables using a third variable​

Answer 1

Answer:

Swapping program using third variable in Qbasic:

Output:

ENTER THE FIRST NUMBER:   12

ENTER THE SECOND NUMBER:   2

BEFORE INTERCHANGE NUMBER ARE:  12 2

AFTER INTERCHANGE NUMBER ARE:  2 12  

Explanation:

Explanation:

The Qbasic swapping program to this question can be given as follows:

Program:

CLS

INPUT "ENTER THE FIRST NUMBER: ", A 'input number'

INPUT "ENTER THE SECOND NUMBER: ", B 'input number'

PRINT "BEFORE INTERCHANGE NUMBER ARE: ", A, B  'print value before swapping'

SWAP=0 'defining variable swap'

'perform swapping'

SWAP=A  

A=B

B=SWAP

PRINT "AFTER INTERCHANGE NUMBER ARE: ", A,B 'print value after swapping'  

END