Problem: check random array with a static value

Question

My goal is to use the random number generator to put numbers into randomArray, then do a linear search to try to find if the number 5 has been generatated. Next print out where in the array the value can be found. I have no compile errors but I have a logical or syntax problem, any help would be great.
public class test {
     int j;
     int target = 5;
     public static void main(String [] args) {
          int i;
          int[] randomArray = new int[20];
          for(i=0; i<randomArray.length; i++) {
               randomArray[i] = (int)(Math.floor(Math.random() * (10.0 - 0.0)) + 0.0);
          test n = new test();
          n.display();
     public int arraySearch(int[] randomArray, int target) {
          for (j=0; j<randomArray.length; j++) {
               if (randomArray[j] == target) {
                    return j;
          return -1;
     public void setArraySearch(int j) {
          j = j;
     int p;
     public void setArrayValues(int[] randomArray) {
          for (int k=0; k<randomArray.length; k++) {
               p = randomArray[k];
     public void display() {
          System.out.println("Five is found in array position " + j);
          System.out.println(p);
}

Answer 1

Hi,
That's correct. You need to call the other methods just as you call display, but you do also have some other minor problems. You have written some methods that aren't needed, and they do nothing. This might help you:
public class test {
     public static void main(String [] args) {
          int i;
          int[] randomArray = new int[20];
          for(i=0; i<randomArray.length; i++) {
               randomArray[i] = (int)(Math.floor(Math.random() * (10.0 - 0.0)) + 0.0);
          test n = new test();
          int indexFound = n.arraySearch(randomArray, 5);                
          n.display(indexFound );
     public int arraySearch(int[] randomArray, int target) {
          for (j=0; j<randomArray.length; j++) {
               if (randomArray[j] == target) {
                    return j;
          return -1;
     public void display(int indexFound) {
          System.out.println("Five is found in array position " + indexFound);
} /Kaj