This is java program... Please type it and paste it i really need help 2. Write
ID: 3841551 • Letter: T
Question
This is java program... Please type it and paste it i really need help
2. Write a program that reads four integers and prints the sum of their squares.
3. Write a program that reads three floating point numbers and prints the cube of their average
4.Write a program that prints the square of the product. Prompt for and read three integer values and print the square of the product of all the three integers.
5. Write a program that creates and prints a random phone number of the form XXX–XXX–XXXX. Include the dashes in the out- put. Do not let the first three digits contain an 8 or 9 (but don’t be more restrictive than that), and make sure that the second set of three digits is not greater than 655. Hint: Think through the easiest way to construct the phone number. Each digit does not have to be determined separately.
Explanation / Answer
Task1.java
--------------
/** Java Program to print The sum of Squares of 4 Integers */
package venkanna;
import java.util.Scanner;
public class Task1 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int sum=0,sqr=0;
int a[]=new int[4];
System.out.println("enter any Four integers: ");
for(int j=0;j<a.length;j++)
{
a[j]=sc.nextInt();
}
for(int k=0;k<a.length;k++)
{
sqr=a[k]*a[k];
sum=sum+sqr;
}
System.out.println("The sum of Squares of 4 Integers are: "+sum);
sc.close();
}
}
Task2.java
--------------
/** Java Program to print The Cube of their Average is: */
package venkanna;
import java.util.Scanner;
public class Task2 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
float sum=0,cube=0,avg;
float a[]=new float[3];
System.out.println("enter any Three Floating Numbers: ");
for(int j=0;j<a.length;j++)
{
a[j]=sc.nextFloat();
sum=sum+a[j];
}
avg=sum/3;
cube=avg*avg*avg;
System.out.println("The Cube of their Average is: "+cube);
sc.close();
}
}
Task3.java
---------------
/** Java Program to print Squares of all three Integers */
package venkanna;
import java.util.Scanner;
public class Task3 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int sqr=0;
int a[]=new int[3];
System.out.println("enter any Three integers: ");
for(int j=0;j<a.length;j++)
{
a[j]=sc.nextInt();
}
for(int k=0;k<a.length;k++)
{
sqr=a[k]*a[k];
System.out.println("The Square Of Number "+a[k]+" is: "+sqr);
}
sc.close();
}
}
Task4.java
--------------
package venkanna;
import java.util.Random;
public class Task4 {
public static void main(String[] args) {
Random obj = new Random();
String phone;
int n1 = 0;
int n2 = 0;
int n3 = 0;
n1 = obj.nextInt(600) + 100;
n2 = obj.nextInt(641) + 100;
n3 = obj.nextInt(8999) + 1000;
//String string1 = Integer.toString(n1);
phone = Long.toOctalString(n1);
System.out.println("The random generated phone number is: " + phone + "-" + n2 + "-" + n3);
}
}
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