stringreader_Java StringReader skip()方法与示例
stringreader
StringReader類skip()方法 (StringReader Class skip() method)
skip() method is available in java.io package.
skip()方法在java.io包中可用。
skip() method is used to skip the given number of characters in the stream.
skip()方法用于跳過流中給定數量的字符。
skip() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
skip()方法是一種非靜態方法,只能通過類對象訪問,如果嘗試使用類名稱訪問該方法,則會收到錯誤消息。
skip() method may throw an exception at the time of skipping the number of characters.
skip()方法在跳過字符數時可能會引發異常。
IOException: This exception may throw when getting any input/output error while performing.
IOException :在執行過程中遇到任何輸入/輸出錯誤時,可能引發此異常。
Syntax:
句法:
public long skip(long number);Parameter(s):
參數:
long number – represents the number of characters to skip.
長數字 -表示要跳過的字符數。
Return value:
返回值:
The return type of the method is long, it returns the exact number of characters skipped.
該方法的返回類型為long ,它返回跳過的確切字符數。
Example:
例:
// Java program to demonstrate the example // of long skip(long number) method of StringReaderimport java.io.*;public class SkipOfSR {public static void main(String[] args) throws Exception {StringReader str_r = null;try {// Instantiates StringReaderstr_r = new StringReader("Java World");// Loop to read until available// bytes leftfor (int val = 0; val <= 4; ++val) {// Read corresponding char valuechar ch = (char) str_r.read();// Display value of chSystem.out.println("ch: " + ch + " ");// By using skip() method is// to skip 1 bytes of data// from str_r long skip = str_r.skip(1);System.out.println("str_r.skip(1): " + skip);}} catch (Exception ex) {System.out.println(ex.toString());} finally {// with the help of this block is to// free all necessary resources linked// with the streamif (str_r != null) {str_r.close();}}} }Output
輸出量
ch: J str_r.skip(1): 1 ch: v str_r.skip(1): 1 ch: str_r.skip(1): 1 ch: o str_r.skip(1): 1 ch: l str_r.skip(1): 1翻譯自: https://www.includehelp.com/java/stringreader-skip-method-with-example.aspx
stringreader
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