#java
Java Programming Series: Java program to swap two numbers using the third variable with Explanation
All Java Programs | Java Coding Interview Questions:
https://www.youtube.com/playlist?list=PLyzY2l387AlNp4K4lWISrt05KbDdsWFD9
https://github.com/talenteddeveloper/All-Java-Programs
Code Repository:
https://github.com/talenteddeveloper/All-Java-Programs/blob/master/src/allPrograms/SwapNumbers.java
In this video series, you'll learn two techniques to swap two numbers in Java. The first one uses a temporary variable for swapping, while the second one doesn't use any temporary variables(https://youtu.be/AX3afVY7T3c).
In the above program, two numbers 20 and 30 which are to be swapped are stored in variables: first and second respectively.
The variables are printed before swapping using println() to see the results clearly after swapping is done.
First, the value of first is stored in variable temp (temp = 20).
Then, value of second is stored in first (first = 30).
And, finally value of temp is stored in second (second = 20).
This completes the swapping process and the variables are printed on the screen.
Remember, the only use of temp is to hold the value of first before swapping. You can also swap the numbers without using temp
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