Homework Answers
21) C. ArithmeticException 19) A. public void someMethod ... -) B. It will cause IllegalArgumentException, not ArithmeticException 18) D. It returns true if each element is 0.
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QUESTION 21 What exception will the following program raise? class Main f public static void main(Stringl...
1. Analyze the following code: public class Test implements Runnable { public static void main(String[] args) { Thread t = new Thread(this); t.start(); } public void run() { System....
1. Analyze the following code: public class Test implements Runnable { public static void main(String[] args) { Thread t = new Thread(this); t.start(); } public void run() { System.out.println("test"); } } 1. The code compiles but will not print anything since t does not invoke the run method. 2. The code will not compile since you cannot invoke "this" in a static method. 3. The program compiles, runs, and prints tests on the console. 2. What will the following example...
Consider the following codes: public class TestThread extends Thread { public static void main(String[] args)...
Consider the following codes: public class TestThread extends Thread { public static void main(String[] args) { TestThread thread = new TestThread(); } @Override public void run() { printMyName(); } private void printMyName() { System.out.println("Thread is running"); } } Test Stem / Question Choices 1: What method should you invoke to start the thread TestThread? A: start() B: run() C: No. Thread will run automatically when executed. D: TestThread is not...
7. Consider the following recursive function: package javaapplication293; public class JavaApplication293 public static void main Stringl...
7. Consider the following recursive function: package javaapplication293; public class JavaApplication293 public static void main Stringl args) recFun(7) public static void recFun int u) if (-= 1 ) System.out. print("Stop! "); else System.out.print("Go "); recFun(u-1);
What will the following program display? public class checkpoint { public static void main(String urgs[]) {...
What will the following program display? public class checkpoint { public static void main(String urgs[]) { int n = 1776; doubled = 110.0901; System .out.println(n + \t + d); myMethod(n, d); System.out.println(n + \t + d); } public static void myMethod(int i, double x) { System.out.printing + \t + x); i = 1250; x= 199.99; System.out.println(i + \t" + x); } } Write the following two methods: i. compute Diameter; This method accepts the radius (r) of a circle, and...
What is the output of following program: public class Test{ public static void main(String[] args) {...
What is the output of following program: public class Test{ public static void main(String[] args) { A a = new A(): a method B(): } } class A{ public A(){ System out println("A's constructor is executed"): } public void method(){ System out printin ("methodA is executed"): } public void methodAB(){ System out printin ("As methodAB is executed"): } } class B extends A { private int num = 0: public B (){ super(): System out printin ("B's constructor is executed"):...
**JAVA*JAVA Question 1 How many k's values will be printed out? public static void main(Stringl args)...
**JAVA*JAVA Question 1 How many k's values will be printed out? public static void main(Stringl args) for (int k-1: k10:k if (k8) continue: System.out.println k) Question 2 3.5 pts Analyze the following code. Which one is correct? package p public class A package p2: import p1. public class B extends Af int i- 5 private int j- 10: public A0I public static void main(Stringll args) B b new B0: System.out.println(a.i+", "+ajt", "+b.it""+bj): a.i is printable None of them b.i is...
must provide the following public interface: public static void insertSort(int [] arr); public static void selectSort(int...
must provide the following public interface: public static void insertSort(int [] arr); public static void selectSort(int [] arr); public static void quickSort(int [] arr); public static void mergeSort(int [] arr); The quick sort and merge sort must be implemented by using recursive thinking. So the students may provide the following private static methods: //merge method //merge two sorted portions of given array arr, namely, from start to middle //and from middle + 1 to end into one sorted portion, namely,...
What output is produced by the following program? public class MysteryNums public static void main(String[] args)...
What output is produced by the following program? public class MysteryNums public static void main(String[] args) - int x = 12; int y = x - 3; 3, sentence (y, x + y); . public static void sentence (int numi, int num2) { 4: System.out.println(num1 + " + num2);
import java.util.Arrays; public class lab { public static void main(String args[]) { int...
import java.util.Arrays; public class lab { public static void main(String args[]) { int arr[] = {10, 7, 8, 9, 1, 5,6,7}; int arr2[] = {9, 8, 7, 6, 5, 4, 3, 2, 1}; int arr3[] = {1, 3, 5, 3, 2, 6, 20}; quicksort(arr,0,arr.length-1); quicksort(arr2,0,arr2.length-1); quicksort(arr3,0,arr3.length-1); System.out.println(Arrays.toString(arr)); System.out.println(Arrays.toString(arr2)); System.out.println(Arrays.toString(arr3)); } private static int partition(int[] items,int low, int high) { int i=0; int j=0;...
Question 2: Execute the following program. import java.util.Arrays; public class ArrayManipulations { public static void main(String[]...
Question 2: Execute the following program. import java.util.Arrays; public class ArrayManipulations { public static void main(String[] args) { // sort doubleArray into ascending order char [] A = {'g', ', 'y', 'a', 'e','d' }; Arrays.sort( A); for (char value: A) System.out.printf("%2C", value); System.out.printf("\n"); char [] A Copy = new char[ 3 ]; System.arraycopy( A, 2, A Copy, 0, A Copy.length); for(char value: A Copy) System.out.printf("%2C", value); System.out.printf("\n"); int location = Arrays.binary Search(A Copy, 'y'); if(location >=0) System.out.printf("y Found at element...
7. Consider the following recursive function: package javaapplication293; public class JavaApplication293 public static void main Stringl args) recFun(7) public static void recFun int u) if (-= 1 ) System.out. print("Stop! "); else System.out.print("Go "); recFun(u-1);
What will the following program display? public class checkpoint { public static void main(String urgs[]) { int n = 1776; doubled = 110.0901; System .out.println(n + \t + d); myMethod(n, d); System.out.println(n + \t + d); } public static void myMethod(int i, double x) { System.out.printing + \t + x); i = 1250; x= 199.99; System.out.println(i + \t" + x); } } Write the following two methods: i. compute Diameter; This method accepts the radius (r) of a circle, and...
What is the output of following program: public class Test{ public static void main(String[] args) { A a = new A(): a method B(): } } class A{ public A(){ System out println("A's constructor is executed"): } public void method(){ System out printin ("methodA is executed"): } public void methodAB(){ System out printin ("As methodAB is executed"): } } class B extends A { private int num = 0: public B (){ super(): System out printin ("B's constructor is executed"):...
**JAVA*JAVA Question 1 How many k's values will be printed out? public static void main(Stringl args) for (int k-1: k10:k if (k8) continue: System.out.println k) Question 2 3.5 pts Analyze the following code. Which one is correct? package p public class A package p2: import p1. public class B extends Af int i- 5 private int j- 10: public A0I public static void main(Stringll args) B b new B0: System.out.println(a.i+", "+ajt", "+b.it""+bj): a.i is printable None of them b.i is...
What output is produced by the following program? public class MysteryNums public static void main(String[] args) - int x = 12; int y = x - 3; 3, sentence (y, x + y); . public static void sentence (int numi, int num2) { 4: System.out.println(num1 + " + num2);
Question 2: Execute the following program. import java.util.Arrays; public class ArrayManipulations { public static void main(String[] args) { // sort doubleArray into ascending order char [] A = {'g', ', 'y', 'a', 'e','d' }; Arrays.sort( A); for (char value: A) System.out.printf("%2C", value); System.out.printf("\n"); char [] A Copy = new char[ 3 ]; System.arraycopy( A, 2, A Copy, 0, A Copy.length); for(char value: A Copy) System.out.printf("%2C", value); System.out.printf("\n"); int location = Arrays.binary Search(A Copy, 'y'); if(location >=0) System.out.printf("y Found at element...
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