Arrays.java

public class Arrays {

    public int[] middleWay(int[] a, int[] b) {
	int[] c = new int[2];
	
	c[0] = a[1];
	c[1] = b[1];
	
	return c;
    }
    
    public int[] makeEnds(int[] nums) {
	int[] ans = new int[2];
	
	ans[0] = nums[0];
	ans[1] = nums[nums.length - 1];
	
	return ans;
    }
    
    public int[] fizzArray(int n) {
	int[] ans = new int [n];

	for(int i=0; i<n; i++){
	    ans[i] = i;
	}
	return ans;
    }

    public boolean only14(int[] nums) {
	
	for(int i=0; i<nums.length; i++){
	    if (nums[i]!=1 && nums[i]!=4)
		return false;
	}
	return true;
    }
}