Write a method that prints: 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 class Main { public static void main(String[] args) { } }
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public static void main(String[] args) {
}
}
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- 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).The String class is provided in the Java library.Provide your own implementation for the following methods (name the newclass MyString2):public MyString2(String s);public int compare(String s);public MyString2 substring(int begin);public MyString2 toUpperCase();public char[] toChars();public static MyString2 valueOf(boolean b);java Write a public static method named getStringReversed that takes in 1 argument of type String and returns the String in reverse order.
- The String class is provided in the Java library.Provide your own implementation for the following methods (name the newclass MyString1):public MyString1(char[] chars);public char charAt(int index);public int length();public MyString1 substring(int begin, int end);public MyString1 toLowerCase();public boolean equals(MyString1 s);public static MyString1 valueOf(int i);Write a PROGRAM that prints: 1 2 3 4 5 1 2 3 4 1 2 3 1 2 1 class Main {public static void main(String[] args) {}}In 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
- Fill with appropriate java keywords/syntaxes in the following method overloading program. package analyze; class { method (double X, double Y, double Z){ return X * Y * Z; } double method (double M, double ) { return M / N; } public class Analyze { public static void main(String[] args) { Find fi = Find(); System.out.println( Method 1 : "+fi.method(2, 4, 6)); System.out.println("Method 2 : "+fi.method(3, 6)); } }public class MysteryReturn2 {3 public static void main(String[] args)4 {5 int x = 1;6 int y = 2;7 int z = 3;89 z = mystery(x, z, y);10 System.out.println(x + " " + y + " " + z);11 }1213 public static int mystery(int c, a, int b);14 {15 c--;16 a = 2 * b + c;17 b = a - 1;18 System.out.println(b + " " + c);1920 return a;21 }22 } 1. The mystery method has three parameter variables, a, b, and c. What is the scope of these variables (that is, where can they be used by their name)?a Java static method that will take an array of strings as its only parameter. The method will return the first string alphabetically (lowest) in the array.
- 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>20Write a recursive method that displaysa string reversely on the console using the following header: public static void reverseDisplay(String value) For example, reverseDisplay("abcd") displays dcba. Write a test programthat prompts the user to enter a string and displays its reversal.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)); } //…