## Doubling

I am learning to multiply by 2 or double.

I know I can do it when I can make it double using 1 and 2 digit numbers. 260 more words

Numeracy

Groups

## Multiplying by 10

I am learning to show multiplication as groups.

I know I can do it when I can create arrays to help me solve problems. 146 more words

Numeracy

#### Lesson 19: Arrays

So far, we have gone over several different types of data we encounter in Java. Some of these data types include: chars, Strings, ints, and doubles. 533 more words

Introduction To Java

# Arrays Around Us

I am learning to identify arrays around me in everyday life.

I know I can do it when I can identify arrays in the world around me. 135 more words

Numeracy

#### Odds and Evens - Arrays

```import java.util.Arrays;
import java.util.Scanner;

/*AniBlogger12
* Odds and Evens- Arrays
*/
public class oddsAndEvens {

public static void main(String[] args) {
// get keyboard
Scanner kb = new Scanner(System.in);
// initialize array, specify number of integers you want typed
int[] array = new int;
// prompt user
// for 10 numbers entered
for (int i = 0; i < 10; i++) {
// put it into an array
array[i] = kb.nextInt();
}
// loop through the numbers one by one
for (int i = 0; i < array.length; i++) {
//if number is divisible by 2
if (array[i] % 2 == 0) {
//it is even and is replaced with 0
array[i] = 0;
//or else:
} else {
//it is odd and is replaced with 1
array[i] = 1;
}
}
//print out the new array
System.out.print("The new array is " + Arrays.toString(array) + "\n");
}

}

```

#### Upcasting an Array of Object to an Array of Any

I wanted a generic method that would accept an array of a custom object whose type can be `ObjectA`, `ObjectB`, and so on. I tried declaring the method like this: 285 more words

PeopleCode

#### Prime Numbers Factorial

Write a program to check whether the given number is prime number or not, if it is prime number display the factorial.

``````import java.util.*;
public class primeFactorial
{
int i,m,flag,n;
primeFactorial()
{
n=0;
m=0;
flag=0;
}
public  void input()
{
Scanner sc = new Scanner (System.in);
System.out.println("Enter the number:");
n=sc.nextInt();
}
public void calculate()
{
input();        // input()method invocation
m=n/2;
if(n==0||n==1)
{
System.out.println(n+" is not prime number");

}
else
{
for(i=2;i<=m;i++)
{
if(n%i==0)
{
flag=1;      //status variable, if any divisor found, flag=1
break;
}
} // end of for loop
if(flag==0)
{
System.out.println(n+" is prime number");
fact(n);

}
else
{
System.out.println(n+" is not prime number");
}
}//end of outer else
}
public void fact(int num1)
{
int n2=num1,fact=1;
for(int j=1;j<=n2;j++)
fact=fact *j;
System.out.println("Factorial " +   fact);
}

public static void main(String args[])
{
primeFactorial pN=new primeFactorial();
pN.calculate();   // calculate() method call

}
}   …``` 15 more words```
Education