In the following program:
public class Problem2{
public static int sample(int x, int y){
int z;
......
}
public static void main(String[] args)
{
int a, b;
......
sample(a,b);
}
}
(1) What is the return type of sample?
(2) What are the local variables of sample?
(3) What are the parameters of sample?
(4) What are the arguments of sample?
(5) Is sample a per-object method? Or a per-class method?
(6) Is sample a public method, or private method?
(1) What is the return type of sample? int (2) What are the local variables of sample? z (3) What are the parameters of sample? x and y of types int (4) What are the arguments of sample? a and b (5) Is sample a per-object method? Or a per-class method? per-class method (6) Is sample a public method, or private method? public
In the following program: public class Problem2{ public static int sample(int x, int y){ int z; .........
What is the missing keyword in the program below? public class Batman { public static int minFunction(int n1, int n2) { int min; if (n1 > n2) min = n2; else min = n1; return min; //This is the value that will be returned from the minFunction method. //The value after the keyword return must match the return type from the method header. Ours is OK because they are both int. } // end the public method named minFunction }...
public class FirstLastNameEvent { public final static int ppg = 35; public final static int cutoff = 50; private String eventNumber; private int guestNumber; private int price; public void setEventNumber(String eventNumber) { this.eventNumber = eventNumber; } public void setGuestNumber(int guestNumber) { this.guestNumber = guestNumber * ppg; } public String getEventNumber() { return eventNumber; } public int getGuestNumber() { return guestNumber; } public int getPrice() { return price; } } Using Assignment #3’s code:(the code above) Modify the ‘public static void...
Java Inner class class Outer { private int x=10; private static int y=20 ; publics void M1( ) { int z=30; class Inner { public void M2() { Sytem.out.println(“sum: ”+ (x+y+z)); } } Inner i=new Inner(); i.M2() ; /// first call i.M2(); // second call i.M2(); // third call } // end of M1 publics static void main(String[] args) { Outer O = new...
Analyze the following code: public class Test { private int t; public static void main(String[] args) { int x; System.out.println(t); } } The variable t is private and therefore cannot be accessed in the main method. The program compiles and runs fine. t is non-static and it cannot be referenced in a static context in the main method. The variablet is not initialized and therefore causes errors. The variable x is not initialized and therefore causes errors.
1) Consider the following Java program: 1 public class HelloWorld { 2 // My first program! 3 public static void main(String[] args) { 4 System.out.println("Hello, World!"); 5 } 6 } What is on line 1? a. a variable declaration b. a statement c. a method (subroutine) definition d. a comment e. a class definition 2) Which one of the following does NOT describe an array? a. It can be used in a for-each loop. b. It has a numbered sequence...
output
What is the output of the following: class Access public int x; private int y public void cal(int x, int y) { this.x = x + 1; this.y = y; } public void print() { System.out.print(""+y); } } class AccessSpecifier { public static void main(String args[]) { Access obj = new Access(); obj.cal(2, 3); System.out.print(obj.x); obj.print(); } } 33 Compilation error 23 None of the available choices Runtime error
What is the output of this program? class A { public int i; private int j; } class B extends A { void display() { super.j = super.i + 1; System.out.println(super.i + " " + super.j); } } class Inheritance { public static void main(String args[]) { B obj = new B(); obj.i=1; obj.j=2; obj.display(); } } Java language!! // include explanation!
Analyze the following code: public class Test { private int t; public static void main(String[] args) { int x; System.out.println(t); } } t is non-static and it cannot be referenced in a static context in the main method. The program compiles and runs fine. The variable t is not initialized and therefore causes errors. The variable x is not initialized and therefore causes errors.
Consider the following sample program: import java.util.Scanner; public class Palindrome { public static void main(String[] args){ Scanner kb = new Scanner(System.in); System.out.println("Enter a word:"); String word = kb.next(); String reverse = ""; for (int i=word.length()-1; i>=0; i--) reverse += word.charAt(i); boolean result = reverse.equalsIgnoreCase(word); if (result) System.out.println("The word " +word+ " is a Palindrome."); else System.out.println("The word " +word+ " is not a Palindrome."); } } Rewrite the program so that the main method is: public static void...
skeleton:
import java.util.*;
public class Point3D{
private int x,y,z;
Point3D(int a, int b, int c){
x = a; y = b; z = c;
}
public int x(){
return x;
}
public int y(){
return y;
}
public int z(){
return z;
}
public String toString(){
return "("+x+","+y+","+z+")";
}
}
Question1Test.java
import java.util.*;
public class Question1Test {
public static void main(String[] args){
MyHashList<Point3D> lst = new
MyHashList<Point3D>(1000);
}
}
a) A class Point3D is given. Re-write this class so that...