Question

Please Help *Urgent*

1 /* */
2 public class LabFinal
3 {
4 public static void main(String[] args) {
5 String mesg = "Try out this String.";
6 char[] hold = mesg.toLowerCase().toCharArray();
7 int p=0;
8
9 System.out.println(forwardSearch(hold,'s')); //output generated 11
10 System.out.println(forwardSearch(hold,'t')); //output generated 0
11 System.out.println(p=forwardSearch(hold,'t',2)); //output generated 6
12 System.out.println(p=forwardSearch(hold,'t',p+1)); //output generated 8
13 System.out.println(p=forwardSearch(hold,'z')); //output generated -1
14 System.out.println(backwardSearch(hold,'s')); //output generated 13
15 System.out.println(backwardSearch(hold,'t')); //output generated 14
16 System.out.println(p=backwardSearch(hold,'t',13)); //output generated 8
17 System.out.println(p=backwardSearch(hold,'t',p-1)); //output generated 6
18 System.out.println(p=backwardSearch(hold,'z')); //output generated -1
19
20 }
21
22 public static int forwardSearch(char[] array, char ch){
23 // write the code needed to implement this method
24 }
25
26 public static int forwardSearch(char[] array, char ch, int startPosition){
27 // write the code needed to implement this method
28 }
29
30 public static int backwardSearch(char[] array, char ch){
31 // write the code needed to implement this method
32 }
33
34 public static int backwardSearch(char[] array, char ch, int startPosition){
35 // write the code needed to implement this method
36 }
37
38 }
39

Answer 1

public class LabFinal {

public static void main(String[] args) {

String mesg = "Try out this String.";

char[] hold = mesg.toLowerCase().toCharArray();

int p = 0;

System.out.println(forwardSearch(hold, 's')); // output generated 11

System.out.println(forwardSearch(hold, 't')); // output generated 0

System.out.println(p = forwardSearch(hold, 't', 2)); // output generated 6

System.out.println(p = forwardSearch(hold, 't', p + 1)); // output generated 8

System.out.println(p = forwardSearch(hold, 'z')); // output generated -1

System.out.println(backwardSearch(hold, 's')); // output generated 13

System.out.println(backwardSearch(hold, 't')); // output generated 14

System.out.println(p = backwardSearch(hold, 't', 13)); // output generated 8

System.out.println(p = backwardSearch(hold, 't', p - 1)); // output generated 6

System.out.println(p = backwardSearch(hold, 'z')); // output generated -1

}

public static int forwardSearch(char[] array, char ch) {

// write the code needed to implement this method

for(int i=0; i<array.length ; ++i) {

if(array[i] == ch)

return i;

}

return -1;

}

public static int forwardSearch(char[] array, char ch, int startPosition) {

// write the code needed to implement this method

for(int i=startPosition; i<array.length ; ++i) {

if(array[i] == ch)

return i;

}

return -1;

}

public static int backwardSearch(char[] array, char ch) {

// write the code needed to implement this method

for(int i=array.length-1; i>=0 ; --i) {

if(array[i] == ch)

return i;

}

return -1;

}

public static int backwardSearch(char[] array, char ch, int startPosition) {

// write the code needed to implement this method

for(int i=startPosition; i>=0 ; --i) {

if(array[i] == ch)

return i;

}

return -1;

}

}

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