FilterInputStream類skip()方法
- skip() 方法可在
java.io
包。 - skip() 方法用於從這個 FilterInputStream 跳過給定字節數的數據。
- skip() 方法是一個非靜態方法,它隻能通過類對象訪問,如果我們嘗試使用類名訪問方法,那麽我們將得到一個錯誤。
- skip() 方法可能會在跳過數據字節時拋出異常。
IOException:當給定的參數無效時可能會拋出此異常。
用法:
public long skip(long number);
參數:
long number
– 表示要跳過的字節數。
返回值:
該方法的返回類型是long
,它返回跳過的確切字節數。
例:
// Java program to demonstrate the example
// of long skip(long number) method
// of FilterInputStream
import java.io.*;
public class SkipOfFIS {
public static void main(String[] args) throws Exception {
FileInputStream fis_stm = null;
FilterInputStream fil_stm = null;
int count = 0;
try {
// Instantiates FileInputStream and
// FilterInputStream
fis_stm = new FileInputStream("D:\\includehelp.txt");
fil_stm = new BufferedInputStream(fis_stm);
// Loop to read until available
// bytes left
while ((count = fil_stm.read()) != -1) {
// Display corresponding char value
char ch = (char) count;
// Display value of ch
System.out.println("ch:" + ch);
// By using skip() method is
// to skip 2 bytes of char value
// from fil_stm
long skip = fil_stm.skip(2);
System.out.println("fil_stm.skip(2):" + 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 stream
if (fis_stm != null) {
fis_stm.close();
if (fil_stm != null) {
fil_stm.close();
}
}
}
}
}
輸出
ch:J fil_stm.skip(2):2 ch:a fil_stm.skip(2):2 ch:r fil_stm.skip(2):2 ch:. fil_stm.skip(2):2 ch:. fil_stm.skip(2):2
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注:本文由純淨天空篩選整理自Preeti Jain大神的英文原創作品 Java FilterInputStream skip() Method with Example。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。