For each call to the following method, indicate what console output is produced: public void mystery1(int n) { if (n <= 1) { System.out.print(n); } else { mystery1(n / 2); System.out.print(", " + n); } }     mystery1(1); mystery1(4); mystery1(16); mystery1(30); mystery1(100);

2. A pentagonal number is defined as n(3n-1)/2 for n = 1, 2, ..., etc.. Therefore, the first few numbers are 1, 5, 12, 22, ... . Write a method with the following header that returns a pentagonal number: %3D public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.

Which recursive method would return a value of 210 if result(7) was called?   Question 1 options:   public int result(int a){    if (a == 1){        return a;    }    else{        return a * result(a - 2);    }}   public int result(int a){    if (a == 1){        return 1;    }    else{        return a * result(a - 2);    }}   public int result(int a){    if (a == 1){        return a + 1;    }    else{        return a * result(a - 2);    }}   public int result(int a){    if (a == 1){        return 1;    }    else{        return a * result(a - 1);    }}

PROBLEM STATEMENT: Return the String "odd" if the input is odd otherwisereturn "even".   public class CheckForEven{public static String solution(int number){// ↓↓↓↓ your code goes here ↓↓↓↓return null;}}   please get help with this Java Question