Let's break it down step by step: ### 1. Integer.MAX_VALUE and...

August 29, 2025 at 08:51 PM

int temp = Integer.MAX_VALUE; System.out.println("temp = " + temp); temp++; System.out.println("added 1 to temp = " + temp); a = [1,2,3] b = [2,3,4] c = set(a) & set(b)

Let's break it down step by step:

1. Integer.MAX_VALUE and Overflow Behavior:

int temp = Integer.MAX_VALUE;
System.out.println("temp = " + temp);
temp++;
System.out.println("added 1 to temp = " + temp);

What does this part do?

  • Integer.MAX_VALUE is the maximum value an int type can store in Java, which is 2,147,483,647.
  • temp is assigned this maximum integer value.
  • The first System.out.println statement will print: temp = 2147483647.
  • When temp++ is executed, it causes an integer overflow, meaning the value "wraps around" to the minimum int value, which is -2,147,483,648.
  • The second System.out.println prints the new value: added 1 to temp = -2147483648.

Key takeaway:

The code demonstrates Java's integer overflow behavior when exceeding the maximum integer value.


2. Python Set Intersection:

a = [1, 2, 3]  
b = [2, 3, 4]
c = set(a) & set(b)

What does this part do?

  • a and b are lists in Python.
  • set(a) converts the list a to a set, which removes duplicates and allows set operations. In this case, a becomes {1, 2, 3}.
  • set(b) converts the list b to a set: {2, 3, 4}.
  • The & operator computes the intersection of two sets, returning elements that are common to both sets.
  • c is assigned the result of this intersection, which is {2, 3}.

Key takeaway:

The code demonstrates finding the intersection of two lists (a and b) by converting them to sets and using the & operator. The final result stored in c is {2, 3}.

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