class Lab4Q1P3 { public static void main(String args[]) { int max = 10; while (max < 10) { System.out.println("count down: " + max); max--; } } } Do you know what is wrong with the program? I know that there is error on the 7th line but I don't know what to fix.
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class Lab4Q1P3 {
public static void main(String args[])
{
int max = 10;
while (max < 10) {
System.out.println("count down: " + max);
max--;
}
}
}
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- Rewrite the private static int recurseMax method without using Java API public class Recursion{ public static void main(String[] args){ // My tests (DO NOT MODIFY!) int[] a = {3,2,6,4,15,7,9,8,6}; p(recurseSum(a)); // Sum should be 60 p(recurseMax(a)); // Max should be 15 // End of tests! } // Recursive methods below here... public static int recurseSum(int[] a){ // TODO: This is the wrapper method. You must complete this AND implement helper method int total = recurseSum(a, a.length); return total; } private static int recurseSum(int[] a, int i){ if (i <= 0) return 0; return (recurseSum(a, i - 1) + a[i - 1]); } public static int recurseMax(int[] a){ int max = recurseMax(a, a.length); return max; } private static int recurseMax(int[] a, int i){ if(i == 1) return a[0]; return Math.max(a[i-1], recurseMax(a, i-1)); } //…basic java please Write a method starTheString that accepts a string of any size/length and a number. It should then return a new string that is two copies of the string with a set of stars between them equal to the number. For example, the call of starTheString("Hello", 5) o would return "*****Hello*****" 5 stars - Hello - 5 Stars starTheString ("Goodbye", 3) o would return "***Goodbye***" 3 stars – Goodbye - 3 StarsIn Java trace the table for the do while loop public class Main { public static void main(String[] args) { int x,j,y; /// Question 1 j = 30; x=5; do { j=j-x-2; --x; }while (j > 20); j x j>20
- public class BandMatrix { public static void main(String[] args) { double n=Integer.parseInt(args[0]); double width=Integer.parseInt(args[1]); for(int i=0; i<n; i++) { for(int j=0; j<n; j++) { if(Math.abs(i-j)<=width) System.out.print("* "); else System.out.print("0 "); }System.out.println(); } } }Getting a error message and I dont understand why public class DebugTwo2 { public static void main(String args[]) { { int a, b; a = 7; b = 4; System.out.println("The sum is " + (a + b); System.out.println("The difference is " + (a - b); System.out.println("The product is " + (a * b); }In Java trace the table for a while loop public class Main { public static void main(String[] args) { // Question 2 j = 30; x=5; for (int i=1;i<=2;i++) { while (j > 20) { j=j-x*i; ++x; }// end of while }// end of for j x i j<=2 j>20
- 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…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(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 static…public class SumOfDiagonals { public static void main(String[] args) { String[][] s1 = {{"2", "3", "4"}, {"5", "6", "7"}, {"8", "9", "10"}}; String[][] s2 = {{"1", "2", "3"}, {"5", "6", "7"}, {"9", "10", "11"}, {"13", "14", "15"}}; String[][] s3 = {{"1", "2", "3", "4"}, {"5", "6", "7", "8"}, {"9", "10", "11", "12"}, {"13", "14", "15", "16"}}; try { sumOfDiagonals(s1); sumOfDiagonals(s2); sumOfDiagonals(s3); } catch(NumberFormatException ex) { System.out.println("Not a valid integer"); } catch(IllegalArgumentException ex) { System.out.println("Array not a square"); } } public static void sumOfDiagonals(String[][] x) { //TODO Complete this method as required in the…
- public class main { public static void main(String [] args) { Dog dog1=new Dog(“Spark”,2),dog2=new Dog(“Sammy”,3); swap(dog1, dog2); System.out.println(“dog1 is ”+ dog1); System.out.println(“dog2 is ”+ dog2); } public static void swap(Dog a, Dog b) { String nameA = a.getName(); String nameB = b.getName(); a.setName(nameB); b.setName(nameA); } What is the output of the main()?public class Turn{public static void main(String[] args){// Different initial values will be used for testingint x = 1; int y = 1; // Turn the arrow by 90 degrees System.out.print("x:", y + 90);System.out.println(x);System.out.print("y: ", x - 1 );System.out.println(y); // Turn the arrow again System.out.print("x:", y - 1);System.out.println(x);System.out.print("y: ",x + 90);System.out.println(y);}}Write a recursive Java method that takes a String as a parameter and returns true if the String is a palindrome. You may assume that the string only contains lower case characters (i.e. no numbers, spaces, punctuation, etc).