Param3
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class Param3 { public int y; public void method1(int y) { y = y * 3; } public int getY() { return y; } } Param3 q3 = new Param3(); q3.y = 100; q3.method1(25); System.out.println(q3.getY()); what is the output for the system.out.println method and why
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- 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++; }public class Animal { public static int population; private int age; } public Animal (int age) { this.age = age; population++; } + msg); public void say (String msg) { System.out.print("Saying: " System.out.print(" for "); System.out.print(getHuman Years()); System.out.println(" years."); } public int getHuman Years() { return age; } public class Mammal extends Animal { private String species; public Mammal(String species, int age) { super (age); this. species species; } } } = public int getHuman Years() { if (species.equals("dog")) 1 else return super.getHumanYears() * 7; return super.getHumanYears(); €public class CallStack{ // Called by func1() void func2 (){ System.out.println("In func2 method"); int a = 0; int b; b = 10 / a; } //Called by Main void func1(){ System.out.println("In func1 method"); this.func2 (); System.out.println("Back in func1 method"); } public static void main (String args[]){ CallStack myCallStack; myCallStack = new CallStack(); System.out.println("In the main method"); try { myCallStack.func1 (); }catch (ArithmeticException e) { System.out.println("Can't divide by Zero!"); } } } Examine the code to determine what it does. Compile and execute the code. Modify the main() method to handle the exception that is propagated to it. Use a try- catch block to display a meaningful error message when the exception occurs. Test your code. Notice that, although the exception was thrown in func2, it is caught by the catch block in the main method.
- class Param5 { private int a, b; public Param5() { b = 2; } public void method1(int b) { a = this.b + 5; System.out.println(a); // what is the output here? a = method2(b); System.out.println(a); // what is the output here? System.out.println(this.b); // what is the output here ? } public int method2(int a) { b = 2 + a; return this.a + b; } Param5 q5 = new Param5(); } q5.method1(3); I want to know each output please with explanation .. the code has no errorspublic 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. Line 13 contains 2 errors. What are they? 2. Rewrite line 13 with the errors identifed in Question 1 corrected.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)?
- 26. Assume the declaration of Exercise 24. A. Write the statements that derive the class dummyClass from class base as a private inheritance. (2 lines are { and }.) "A1 is { "A2 is "A3 is )) B. Determine which members of class base are private, protected, and public in class dummyClass. "B1 is dummyClass is a de1) The UsingMethod class consists of a main method and a method called xMethod. What will the code print? public class UsingMethod {public static void main(String[] args) {double z = xMethod(3.5, 5.5);System.out.println(z);}public static double xMethod(double x, double y) {return x + y;}} 2) Identify the errors in the following programs a) 3 errorspublic class Test {public static void main(String[] args) {System.out.println(method2(3.4));} public static int method1(int n) {if (n > 0) return 1;else if (n == 0) return 0;else if (n < 0) return -1;}} b) 2 errorspublic class Test {public static void main(String[] args) {nPrintln(5, "Welcome to Java!");}public static void nPrintln(String message, int n) {for (int i = 0; i < n; i++) {System.out.println(message);}return n;}}public class MyOutput { public static void main(String[] args) { int totalNumbers=6; Double dblAverage=4.5; Integer yourNumber= new Integer (20); int result=yourNumber+88; String myMessage="Exam"; System.out.println(totalNumbers+dblAverage+myMessage+result); }
- 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 codeQUESTION 9 Public Class Employee { public static int y; Private int age; Public Employee(0{ age=0;} public int get_age() { return age;} Public Class Test { public static void main(String[] args) { Employee q = new Employee(); q.y=2; Employee.y=10; System.out.println("y=" + q.y); a. What is the output of the following code? b. Insert a System.out.println() statement that prints out q's agepublic class sample{public static int x = 100;public static int y = 150; }public class newspaper :sample{new public static int x = 1000;static void Main(string[] args){console.writeline(sample.x + " " + sample.y + " " + x);}} 100 150 1000 1000 150 1000 100 150 1000 100 150 100