Java Program to swap two numbers using the third variable with Explanation

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Java Programming Series: Java program to swap two numbers using the third variable with Explanation

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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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[lilbabyuzi]

First, second or third value ka purpose likhna ho toh kese likhe??