拆分器 fixedLength() 方法 |番石榴 |Java

方法fixedLength(int length)返回一个拆分器，它将字符串分成给定长度的片段。例如， Splitter.fixedLength(2).split(“abcde”)返回一个包含[“ab”, “cd”, “e”]的可迭代对象。最后一块可以小于长度，但永远不会为空。

句法：

public static Splitter fixedLength(int length)

参数：此方法以长度为参数，即分割后所需的片段长度。它是一个正整数值。

返回值：此方法返回一个拆分器，具有默认设置，可以拆分为固定大小的块。

异常：如果长度为零或负数，此方法将引发IllegalArgumentException 。

示例 1：

// Java code to show implementation of
// fixedLength(int length) method
// of Guava's Splitter Class
  
import com.google.common.base.Splitter;
import java.util.List;
  
class GFG {
  
    // Driver's code
    public static void main(String[] args)
    {
        // Creating a string variable
        String str = "Delhi Noida Chandigarh";
  
        // Initially setting length as 3
        System.out.println("When Length is 3 : ");
  
        // Using fixedLength(int length) method which
        // returns a splitter that divides strings
        // into pieces of the given length
        Iterable result = Splitter.fixedLength(3)
                                      .trimResults()
                                      .split(str);
  
        for (String temp : result) {
            System.out.println(temp);
        }
  
        // Setting length as 4
        System.out.println("\n\nWhen Length is 4 : ");
  
        // Using fixedLength(int length) method which
        // returns a splitter that divides strings
        // into pieces of the given length
        Iterable result1 = Splitter.fixedLength(4)
                                       .trimResults()
                                       .split(str);
  
        for (String temp : result1) {
            System.out.println(temp);
        }
    }
}

输出：

When Length is 3 : 
Del
hi
Noi
da
Cha
ndi
gar
h


When Length is 4 : 
Delh
i No
ida
Chan
diga
rh

示例 2：显示 IllegalArgumentException

// Java code to show implementation of
// fixedLength(int length) method
// of Guava's Splitter Class
  
import com.google.common.base.Splitter;
import java.util.List;
  
class GFG {
  
    // Driver's code
    public static void main(String[] args)
    {
  
        try {
            // Creating a string variable
            String str = "GeeksforGeeks is best";
  
            // Initially setting length as 0
            // This should throw "IllegalArgumentException"
            // as length is 0
            System.out.println("When Length is 0 : ");
  
            // Using fixedLength(int length) method which
            // returns a splitter that divides strings
            // into pieces of the given length
            Iterable result = Splitter.fixedLength(0)
                                          .trimResults()
                                          .split(str);
  
            for (String temp : result) {
                System.out.println(temp);
            }
        }
        catch (Exception e) {
            System.out.println("Exception: " + e);
        }
    }
}

输出：

When Length is 0 : 
Exception: java.lang.IllegalArgumentException: 
           The length may not be less than 1