I hope all is well. I've recently solved an algorithm in Coding Bat (Java - Array1 - firstLast6):
Problem
*Given an array of ints, return true if 6 appears as either the first or last element in the array. The array will be length 1 or more.
firstLast6([1, 2, 6]) → true
firstLast6([6, 1, 2, 3]) → true
firstLast6([13, 6, 1, 2, 3]) → false*
My Solution
public boolean firstLast6(int[] nums) {
if ( (nums[0] == 6) || (nums[nums.length - 1]) == 6 ) {
return true;
}
return false;
}
This is the correct solution. However, it's one thing to solve the problem in Coding Bat, but I want to be able to call this boolean method in my VS Code editor in the main method. My research thus hasn't produced a solid answer to my question.
In the main method:
Boolean method call: How would you call the boolean method that has an array (nums) as a parameter? I'm stuck on the syntax for this part.
Print out statement: Using "System.out.println()" print out the true or false result?
VS Code - Full Layout
public class ReturnStatements {
public static void main(String[] args) {
// Method call
// Print out statement outputing true or false.
}
public static boolean firstLast6(int[] nums) {
if ( nums[0] == 6 || nums[nums.length - 1] == 6 ) {
return true;
}
return false;
}
}
2 Answers
You can do:
public static void main(String[] args) {
System.out.println(fistLast6(new int[] {1, 2, 6}));
}
And @thinkgruen's suggestion:
public static boolean firstLast6(int[] nums) {
return nums[0] == 6 || nums[nums.length - 1] == 6;
}
public class ReturnStatements {
public static void main(String[] args) {
// Method call
boolean toFirstLast6 = firstLast6(new int[] {1, 2, 6});
// Print out statement outputing true or false
System.out.println(toFirstLast6);
}
public static boolean firstLast6(int[] nums) {
if ( nums[0] == 6 || nums[nums.length - 1] == 6 ) {
return true;
}
return false;
}
}
