Question

What is the output of the following code fragment:

int[] zip = new int[5];
zip[0] = 7;
zip[1] = 3;
zip[2] = 4;
zip[3] = 1;
zip[4] = 9;
int j = 3;
System.out.println( zip[ j-1 ] );

Answer 1

The output of the given code fragment is the number 4, which is the third element in the array 'zip' when index j is set to 3.

Step-by-step explanation:

The question asks for the output of a given code fragment written in Java. This code initializes an array zip of five elements, assigns individual values to each slot, sets the variable j to 3, and finally prints the element at position j-1.

The array zip is indexed from 0 to 4 and contains the following values after initialization:

• zip[0] = 7
• zip[1] = 3
• zip[2] = 4
• zip[3] = 1
• zip[4] = 9

Since j is equal to 3, the expression zip[j-1] evaluates to zip[2], which is the third element of the array zip and has the value 4. Therefore, the output will be:

4

The code fragment creates an array called 'zip' of type int with a length of 5. It then assigns values to the individual elements of the array. The fourth line of the code fragment initializes a variable 'j' with the value 3. Finally, the 'System.out.println' statement prints the value of 'zip[j-1]' to the console.

In this case, 'j' is equal to 3, so 'j-1' equals 2. Therefore, the output of the code is the value of the element in the 'zip' array at index 2, which is 4.

Output:

4