Swap two numbers without using temporary variable
public class SwappingNumbers {
public static void main(String[] args) {
float first = 10.0f, second = 14.5f;
System.out.println("First number is " + first);
System.out.println("Second number is " + second);
first = first - second;
second = first + second;
first = second - first;
System.out.println("--Swapping numbers--");
System.out.println("First number = " + first);
System.out.println("Second number = " + second);
}
}
Now lets try to swap the numbers without using the temp variable
public class SwappingNumbers {
public static void main(String[] args) {
float first = 11.20f, second = 12.45f;
// Value of the first is assigned to temporary
float temporary = first;
// Value of the second is assigned to first
first = second;
// Value of temporary is assigned to the second now
second = temporary;
System.out.println("First number = " + first);
System.out.println("Second number = " + second);
}
}
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