Question

// SET5. Write a Java statement that changes the month of the first object of this array to be a copy of the month

// of the last object of the array. (Assign the month of the last object to the month of the first object).

// SET6. Write a segment of code to swap the first and the second objects in this array. Declare any additional

// variable you might need.  

Answer 1

Program Code [JAVA]

import java.util.Arrays;

public class Statement {

public static void main(String[] args) {

// SET 5
// First we need to have an array of months

String[] months = {"Jan", "Feb", "March", "April",
"May", "June", "July", "Aug", "Sep", "Oct", "Nov", "Dec"};

// Showing array before changing first object with last object

System.out.println("**** SET 5 ****");
System.out.println("\nBefore copying last object in first object");
System.out.println(Arrays.toString(months));

// Now Copying - set5

months[0] = months[months.length-1]; // answer of set5

System.out.println("\nAfter copying last object in first object");
System.out.println(Arrays.toString(months));

// Swapping first and second objects

String temp = months[0]; // answer of set6
months[0] = months[1];
months[1] = temp;

System.out.println("\n**** SET 6 ****");
System.out.println("\nAfter swapping the first and second objects");
System.out.println(Arrays.toString(months));
}
}

Sample Output:-

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