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2,464 Pointswhat does "public boolean hasTile(char tile) { return mHand.indexOf(tile) > -1; }" mean here?
"public boolean hasTile(char tile) { return mHand.indexOf(tile) > -1; }"
public class ScrabblePlayer {
private String mHand;
public ScrabblePlayer() {
mHand = "";
}
public String getHand() {
return mHand;
}
public void addTile(char tile) {
// Adds the tile to the hand of the player
mHand += tile;
}
public boolean hasTile(char tile) {
return mHand.indexOf(tile) > -1;
}
}
1 Answer
Dan Johnson
40,533 PointsThe hasTile method checks mHand to see if it contains a specific character (representing a tile in this case). It does this by using the indexOf method of the String
class. indexOf will either return the position of the character if it finds one, or -1 if the String
doesn't contain that character. So by checking if the return value is greater than -1, you can determine if a character exists within a String
.