Question

Q1. Write a program in Java

        a. Create 2 separate arrays, of user defined values, of same size

        b. Add these 2 arrays.

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Q2. Write a program in java (using loop) input any10 numbers from user and store in an array. Check whether each of array element is positive, negative, zero, odd or even number.

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Q3. Write a program in Java to display first 10 natural numbers. Find the sum of only odd numbers.

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Q4. Write a Java program to check if an array of integers contains two specified elements 65 and 77.

Please i need it now very urgent

Answer 1

3) Code for this is given as :

class Main {

//main function starts here

public static void main(String[] args) {

//variables are declared and initialized

int i,sum=0;

System.out.println("The 1st 10 natural numbers are :");

//loop is used to print the 1st 10 natural numbers

for(i=1;i<=10;i++){

System.out.print(i + " ");

//every odd number on dividing by 2, will give remainder as 1. Then just add those numbers and stored in sum

if(i%2==1){

sum = sum + i;

}

}

//results are printed

System.out.println("\nSum of only odd numbers are : " +sum);

}

}

Output :