Question

What is the output of this code segment?

    double [] a = {-1.2, 3.1, -4.7, 38.0, 0.0};
    double temp = a[0];

    for (int i = 1; i < a.length; i++) {
        if (a[i] < temp) {
            temp = a[i];
        }
    }

    System.out.println (temp);

What does this method do? In one short English sentence describe the task accomplished by this method.

    public static int foo(int [] a)
    {
        int temp = 0;
        for (int i = 0; i < a.length; i++) {
            if (a[i] < 0) {
                temp++;
            }
        }
        return temp;
    }

What does this method do? In one short English sentence describe the task accomplished by this method.

    public static char [] bar(String [] a)
    {
        char [] tmp = new char[a.length];

        for (int i = 0; i < a.length; i++) {
            if (a[i].length() > 0) {
                tmp[i] = a[i].charAt(0);
            }
            else {
                tmp[i] = ' ';
            }
        }
        return tmp;
    }

Write a static method that takes an array of integers as a parameter and returns true if the count of strictly positive values is larger than the count of strictly negative values in the array, false otherwise. A number is strictly positive if it is strictly larger than zero (i.e. it cannot equal zero). A number is strictly negative if it is strictly less than zero.

Write a static method that takes an array of integers as a parameter and returns back an integer that is the sum of all of the integers in the array.

Answer 1

What is the output of this code segment?

Ans: temp value=-4.7

What does this method do? In one short English sentence describe the task accomplished by this method.

Ans: it just counts the number of integers which are less than zero in the given array of integers

What does this method do? In one short English sentence describe the task accomplished by this method.

Ans:The code fills the array with the first character in an array of characters.if array deos not contain anything it fills with empty character.

Write a static method that takes an array of integers as a parameter and returns back an integer that is the sum of all of the integers in the array.

  public static int sum(int[] a)
    {
      int p, r;
      r = 0;
      for(p= 0; p < a.length; p++)
      {
        r = r + a[p];
      }
      return r;
    }

Write a static method that takes an array of integers as a parameter and returns true if the count of strictly positive values is larger than the count of strictly negative values in the array, false otherwise. A number is strictly positive if it is strictly larger than zero (i.e. it cannot equal zero). A number is strictly negative if it is strictly less than zero

public static boolean strictlylarger(int [] a){
int l=0;
for(int i=0;i<a.length;i++){
if(a[i]>0){
l++;
}else if(a[i]<0){
l--;
}
}
if(l>0){
return true;
}else{
return false;
}
}