Question

Write a Java method that searches a 2-d array for a specific character. Return the index of the first location of the character.

Method header: public static void play(char c, char[][]wordSearch){

Example:

a e v s l g
r e d k h k
q s e z j c
p o a t s o
v a n m n l
q p f o x b

The character 's' appears at index 0,3.

Answer 1

Here is code:

public static void play(char c, char[][] wordSearch) {

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

for (int j = 0; j < wordSearch[i].length; j++) {

if (wordSearch[i][j] == c) {

System.out.println(i + ", " + j);

return;

}

}

}

}

Sample code to test:

import java.util.*;

class Test {

public static void play(char c, char[][] wordSearch) {

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

for (int j = 0; j < wordSearch[i].length; j++) {

if (wordSearch[i][j] == c) {

System.out.println(i + ", " + j);

return;

}

}

}

}

public static void main(String[] args) {

char[][] words = { { 'a', 'e', 'v', 's', 'l', 'g' }, { 'r', 'e', 'd', 'k', 'h', 'k' },

{ 'q', 's', 'e', 'z', 'j', 'c' }, { 'p', 'o', 'a', 't', 's', 'o' }, { 'v', 'a', 'n', 'm', 'n', 'l' },

{ 'q', 'p', 'f', 'o', 'x', 'b' } };

play('s', words);

}

}

Output: