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- import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public…10. public static void methodl (int i, int num) { for (int j = 1; j <= i; j++) { " "); System.out.print (num + num *= 2; } System.out.println(); } public static void main(String[] args) { int i = 1; while (i <= 6) { methodl (i, 2); i++; }import java.util.Scanner;public class LabProgram{ static boolean IsArrayMult10(int inputVals[],int numVals) { for(int i=0;i<numVals;i++) { if(inputVals[i]%10!=0) return false; } return true; } static boolean IsArrayNoMult10(int inputVals[],int numVals) { for(int i=0;i<numVals;i++) { if(inputVals[i]%10!=0) return true; } return false; } public static void main(String[] args) { int n; boolean f=false; Scanner sc= new Scanner(System.in); n=sc.nextInt(); int []arr=new int[20]; if(n<=20) { for(int i=0;i<n;i++) { arr[i]=sc.nextInt(); } } if(IsArrayMult10(arr,n)==true) System.out.print("all multiples of 10\n"); if(IsArrayNoMult10(arr,n)==true) { for(int i=0;i<n;i++) { if(arr[i]%10==0) { f=true; break; } } if(f==true)…
- How many times will the body of the following loop statement execute? Your answer must be a number in numeral form (i.e. not in words) * for (int i = 5; i < 90; i++) { System.out.print("A");public static void main(String[] args) { int a; int b; int c; c = quad(0,1, 2); b = quad(1, 2, 3); a = quad(5, 6, 7); c = c +b+ a; } private static int quad(int a, int b, int c) { int r; r= a +b+ c; return r; } For the code above, how many entries does the activation record for method quad have? During the execution of main, at most how many activation records are existent on the run-time stack?Translate the following Java code into VM code. int positiveDivide(int a, int b){ int quotient = 0; int divisor = b; while (divisor <= a) { quotient++; divisor += b; } return quotient;}
- Write code in Java: -Must be recursive import java.util.*; import java.lang.*; import java.io.*; //*Analysis goes here* //*Design goes here* class AllPermutation { public static void displayPermutation(String s) { //*Code goes here* } public static void displayPermutation(String s1, String s2) { //*Code goes here* } } //*Driver class should not be changed* class DriverMain { public static void main(String args[]) { Scanner input = new Scanner(System.in); AllPermutation.displayPermutation(input.nextLine()); } }import java.util.*; public class Watersort { Character top = null; // create constants for colors static Character red= 'r'; static Character blue = 'b'; static Character yellow= 'g'; // Bottles declaratio public static void showAll( StackAsMyArrayList bottles[]) { for (int i = 0; i<=4; i++) { System.out.println("Bottle "+ i+ ": " + bottles[i]); } } public static void main(String args[]) { //create the bottle StackAsMyArrayList bottleONE = new StackAsMyArrayList<Character>(); System.out.println("\nbottleONE:"+ bottleONE+ " size:" + bottleONE.getStackSize()+" uniform? "+ bottleONE.checkStackUniform()); bottleONE.push(red);…import java.util.Scanner; public class Application {public static void main(String[] args){ int Num;float Ave;Employee[] Emp = new Employee[100]; System.out.println("Enter the number of employees:");Num = Integer.parseInt(new Scanner(System.in).nextLine());for (int i = 0; i < Num; i++){ Emp[i] = new Employee();Emp[i].Input();} System.out.printf("The list of employees:");System.out.println();Display(Emp, Num);Ave= AverageSalary(Emp, Num);System.out.printf("\nAverage salary is:" + "%.2f", Ave); System.out.printf("\nThe employee with highest salary is:\n" + employeeHigh(Emp, Num));}private static float AverageSalary(Employee [] emps, int n){float sum=0; for (int i = 0; i < n; i++)sum = sum + emps[i].salary;return sum/n;}private static void Display(Employee[] arr, int n){ for (int i = 0; i < n; i++){System.out.printf("%s",arr[i]);}}private static Employee employeeHigh(Employee[] arr, int n){ float high= arr[0].salary ;int iHigh = 0;for (int i = 1; i < n; i++){if( arr[i].salary…
- class overload { int x; double y; void add(int a , int b) { x = a + b; } void add(double c , double d) { y = c + d; } overload() { this.x 0; %3D this.y = 0; } %3D } class Overload_methods { public static void main(String args[]) { overload obj int a = 2; double b - 3.2; obj.add(a, a); obj.add(b, b); System.out.println(obj.x + } = new overload(); + obj.y); } #3Run the codeQ27 for java programing: public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0 ; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new Cat(),new Cat(),new Cat()}; for(int i = 0 ; i < cats.length; i++) cats[i].me(); System.out.print(Dog.getCount()+" woofs and"); System.out.println(Cat.getCount()+" mews"); System.out.println("=====>>>"+decision()); } class Counter { private static int count; public static void inc() { count++;} public static int getCount() {return count;} } class Dog extends Counter{ public Dog(){} public void wo(){inc();} } class Cat extends Counter{ public Cat(){} public void me( ){inc();} } The Correct answer: public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0 ; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new…Note: Java Consider the following recursive method: public static int Fun(int x) { if(x == 0) //line 1 return 0 //line 2 else if( x == 1) //line 3 return 1; //line 4 else //line 5 return (x*Fun(x-1)); //line 5 } a) Is Fun(4) a valid call? If so, what is the value? If not, explain why? Answer: b) Is Fun(-4) is a valid call? If so, what is the value? If not, explain why? Answer: (c) Consider the following method. public static int res(int[] list, int first, int last) { if (first == last) return list[first]; else return list[first] + res(list, first + 1, last); } Given the declaration int[] A = {2, 4, 6, 8, 10}; What is the output of the following statement? out.println(res(A, 0, 2)); out.println(res(A, 0,…