时代Java

Java 如果从位置开始的数组a按顺序包含数组b的所有元素，则返回true。

欢马劈雪

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如果从位置开始的数组a按顺序包含数组b的所有元素，则返回true。

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//package com.nowjava;
/**来自 
 时代Java公众号 - N o w J a  v a . c o m**/

public class Main {

public static void main(String[] argv) throws Exception {

byte[] arra = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };

int start = 2;

byte[] arrb = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };

System.out.println(containsAt(arra, start, arrb));

}

/**

* Returns true if arra from position start contains all elements of arrb

* in sequential order.

public static boolean containsAt(byte[] arra, int start, byte[] arrb) {

return countSameElements(arra, start, arrb) == arrb.length;

}

/**

* Returns true if arra from position start contains all elements of arrb

* in sequential order.

public static boolean containsAt(char[] arra, int start, char[] arrb) {

return countSameElements(arra, start, arrb) == arrb.length;/** 来自 n o w j a   v  a . c o m - 时  代  Java**/

}

/**

* Returns the count of elements in arra from position start that are

* sequentially equal to the elements of arrb.

public static int countSameElements(byte[] arra, int start, byte[] arrb) {

int k = 0;

int limit = arra.length - start;

if (limit > arrb.length) {

limit = arrb.length;

}

for (int i = 0; i < limit; i++) {

if (arra[i + start] == arrb[i]) {

k++;

} else {

break;

}

return k;

}

/**
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编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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