Guava – Booleans.join()方法及示例

Guava – Booleans.join()方法及示例

Guava库中Booleans类的join()方法用于组合或连接所有由分隔符分隔的布尔值。这些布尔值被作为参数传递给这个方法。这个方法也把分隔符作为参数。该方法返回一个字符串,它是对指定的布尔值进行连接操作的结果。

例如:join(“-“, false, true, false) 返回字符串 “false-true-false”。

语法:

public static String join(String separator,
                          boolean... array)

参数:该方法接受两个强制性参数。

  • separator:是出现在连接的布尔值之间的字符。
  • array:这是一个要连接的布尔值的数组。

返回值: 该方法返回一个字符串,包含所有给定的布尔值,用分隔符分隔。

下面的程序说明了这种方法的使用。

例子-1 :

// Java code to show implementation of
// Guava's Booleans.join() method
  
import com.google.common.primitives.Booleans;
import java.util.Arrays;
  
class GFG {
  
    // Driver's code
    public static void main(String[] args)
    {
        // Creating a boolean array
        boolean[] arr = { true, false, true,
                          false, true };
  
        // Using Booleans.join() method to get a
        // string containing the elements of array
        // separated by a separator
        System.out.println(Booleans.join("#", arr));
    }
}

输出:

true#false#true#false#true

例2 :

// Java code to show implementation of
// Guava's Booleans.join() method
  
import com.google.common.primitives.Booleans;
import java.util.Arrays;
  
class GFG {
  
    // Driver's code
    public static void main(String[] args)
    {
        // Creating a boolean array
        boolean[] arr = { false, false,
                          true, false };
  
        // Using Booleans.join() method to get a
        // string containing the elements of array
        // separated by a separator
        System.out.println(Booleans.join("*", arr));
    }
}

输出:

false*false*true*false

参考资料:

https://google.github.io/guava/releases/20.0/api/docs/com/google/common/primitives/Booleans.html#join-java.lang.String-boolean…-

赞(0)

猜你喜欢

    评论 抢沙发

    • 昵称 (必填)
    • 邮箱 (必填)
    • 网址
    Guava 教程
    Guava 教程Guava - 概述Guava - 环境搭建Guava - Optional类Guava - Preconditions类Guava - Ordering类Guava - Objects类Guava - Range类Guava - Throwables类Guava - Collections 工具类Guava - Caching 工具类Guava - Multiset接口Guava - bimapGuava - MultiMap
    Guava Ints类
    Guava Ints类Guava Ints - concat() 函数Guava Ints - lastIndexOf() 函数Guava Ints - contains() 函数Guava Ints - asList() 函数Guava Ints - max() 函数Guava Ints - min() 函数Guava Ints - join() 函数Guava Ints - toArray() 函数Guava Ints - indexOf() 函数
    Guava Chars类
    Guava Chars类Guava - Chars.compare()方法与实例Guava - Chars.hashCode()方法与实例Guava - Chars.min()方法与实例Guava - Chars.max()方法与实例Guava - Chars.toArray()方法与实例Guava - Chars.concat()方法与实例Guava - Chars.contains()方法与实例Guava - Chars.lastIndexOf()方法与实例Guava - Chars.join()方法与实例Guava - Chars.indexOf()方法与实例Guava - Chars.asList()方法与实例
    Guava LongMath类
    Guava LongMath类Guava - LongMath.binomial方法与实例Guava - LongMath.log2方法与实例Guava - LongMath.pow方法与实例Guava - LongMath.isPowerOfTwo方法与实例Guava - LongMath.gcd方法与实例Guava - LongMath.mean方法与实例Guava - LongMath.sqrt方法与实例Guava - LongMath.mod方法与实例Guava - LongMath.log10方法与实例Guava - LongMath.checkedMultiply方法与实例Guava - LongMath.checkedAdd方法与实例Guava - LongMath.checkedPow方法与实例Guava - LongMath.divide方法与实例
    Guava Longs类
    Guava Longs类Guava - Longs.compare()方法与实例Guava - Longs.hashCode()方法与实例Guava - Longs.factorial方法与实例Guava - Longs.contains()方法与实例Guava - Longs.min()方法与实例Guava - Longs.max()方法与实例Guava - Longs.toArray()方法与实例Guava - Longs.lastIndexOf()方法与实例Guava - Longs.join()方法与实例Guava - Longs.asList()方法与实例Guava - Longs.checkedSubtract()方法与实例Guava - Longs.concat()方法与实例Guava - Longs.indexOf()方法与实例
    Guava Booleans类
    Guava Booleans类Guava - Booleans.asList()方法及示例Guava - Booleans.compare()方法及示例Guava - Booleans.concat()方法及示例Guava - Booleans.contains()方法及示例Guava - Booleans.countTrue()方法及示例Guava - Booleans.hashCode()方法及示例Guava - Booleans.indexOf()方法及示例Guava - Booleans.join()方法及示例Guava - Booleans.lastIndexOf()方法及示例Guava - Booleans.toArray()方法及示例
    Guava Shorts类
    Guava Shorts类Guava - Shorts.toArray()方法及实例Guava - Shorts.min()方法及实例Guava - Shorts.max()方法及实例Guava - Shorts.lastIndexOf()方法及实例Guava - Shorts.join()方法及实例Guava - Shorts.indexOf()方法及实例Guava - Shorts.hashCode()方法及实例Guava - Shorts.contains()方法及实例Guava - Shorts.concat()方法及实例Guava - Shorts.asList()方法及实例
    Guava IntMath类
    Guava IntMath类Guava - IntMath.checkedAdd()方法及实例Guava - IntMath.checkedMultiply()方法及实例Guava - IntMath.checkedPow()方法及实例Guava - IntMath.checkedSubtract()方法及实例Guava - IntMath.divide()方法及实例Guava - IntMath.log10()方法及实例