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我有這個代碼,我想要隨機返回字符串,因此每次都會返回一個不同的字符串。它的工作原理罰款Math.random()沒有正確返回
words = sentenceStore[rnd.nextInt(sentenceStore.length)];
,但試圖利用數學類的方法,它只是返回每次
words = sentenceStore[(int)Math.random() * sentenceStore.length];
誰能幫助索引0的字符串?
WordBank.java(無主此方法):
import java.util.Random;
public class WordBank {
private String [] sentenceStore;
public String getSentence (String words) {
String [] sentenceStore = new String [5]; //i'll store 5 sentences here for now.
sentenceStore[0] = "Hello how are you doing";
sentenceStore[1] = "What do you want eh";
sentenceStore[2] = "Hello can i help you";
sentenceStore[3] = "You are so incredibly pretty";
sentenceStore[4] = "What was that you said";
Random rnd = new Random();
words = sentenceStore[rnd.nextInt(sentenceStore.length)];
//words = sentenceStore[(int)Math.random() * sentenceStore.length];
return words;
}
}
優秀。非常感謝你。 – user3814983
不用客氣 – Phash