Java 番石榴| Chars.concat()方法,带示例
原文:https://www . geesforgeks . org/Java-guava-chars-concat-method-with-examples/
番石榴库中字符类的 concat() 方法用于将多个数组的值连接成一个数组。这些要连接的字符数组被指定为此方法的参数。
例如: concat(new char[] {a,b}、new char[] {}、new char[] {c} 返回数组{a,b,c}。
语法:
public static char[] concat(char[]... arrays)
参数:该方法接受数组作为参数,该参数是该方法要连接的字符数组。
返回值:该方法返回一个单字符数组,该数组包含所有指定字符数组值的原始顺序。
下面的程序说明了 concat()方法的使用:
例 1:
// Java code to show implementation of
// Guava's Chars.concat() method
import com.google.common.primitives.Chars;
import java.util.Arrays;
class GFG {
// Driver's code
public static void main(String[] args)
{
// Creating 2 Character arrays
char[] arr1 = { 'H', 'E', 'L', 'L', 'O' };
char[] arr2 = { 'G', 'E', 'E', 'K', 'S' };
// Using Chars.concat() method to combine
// elements from both arrays into a single array
char[] res = Chars.concat(arr1, arr2);
// Displaying the single combined array
System.out.println(Arrays.toString(res));
}
}
Output:
[H, E, L, L, O, G, E, E, K, S]
例 2:
// Java code to show implementation of
// Guava's Chars.concat() method
import com.google.common.primitives.Chars;
import java.util.Arrays;
class GFG {
// Driver's code
public static void main(String[] args)
{
// Creating 4 Character arrays
char[] arr1 = { '1', '2', '3' };
char[] arr2 = { '4', '5' };
char[] arr3 = { '6', '7', '8' };
char[] arr4 = { '9', '0' };
// Using Chars.concat() method to combine
// elements from both arrays into a single array
char[] res = Chars.concat(arr1, arr2, arr3, arr4);
// Displaying the single combined array
System.out.println(Arrays.toString(res));
}
}
Output:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
参考:
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