Reader skip(long) method in Java with Examples
Last Updated :
13 Feb, 2019
The skip(long) method of Reader Class in Java is used to skip the specified number of characters on the stream. This number of characters is specified as the parameter. If it reaches the end of the stream by skipping, it will block the stream till it gets some characters, or throw IOException.
Syntax:
public long skip(long numberOfChar)
Parameters: This method accepts a parameter numberOfChar which is the number of characters to be skipped by this method.
Return Value: This method returns a long value which is the actual number of character skipped by this method.
Exception: This method throws:
- IOException: if some error occurs while input output
- IllegalArgumentException: if the numberOfChar passed is negative.
Below methods illustrates the working of skip(long) method:
Program 1:
import java.io.*;
import java.util.*;
class GFG {
public static void main(String[] args)
{
try {
String str = "GeeksForGeeks" ;
Reader reader
= new StringReader(str);
int ch;
for ( int i = 0 ; i < 5 ; i++) {
ch = reader.read();
System.out.print(( char )ch);
}
System.out.println();
reader.skip( 3 );
System.out.println( "Next 3 characters skipped." );
for ( int i = 0 ; i < 5 ; i++) {
ch = reader.read();
System.out.print(( char )ch);
}
}
catch (Exception e) {
System.out.println(e);
}
}
}
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Output:
Geeks
Next 3 characters skipped.
Geeks
Program 2:
import java.io.*;
import java.util.*;
class GFG {
public static void main(String[] args)
{
try {
String str = "GeeksForGeeks" ;
Reader reader
= new StringReader(str);
int ch;
for ( int i = 0 ; i < 5 ; i++) {
ch = reader.read();
System.out.print(( char )ch);
}
System.out.println();
reader.skip( 10 );
for ( int i = 0 ; i < 5 ; i++) {
ch = reader.read();
System.out.print(( char )ch);
}
}
catch (Exception e) {
System.out.println(e);
}
}
}
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Reference: https://docs.oracle.com/javase/9/docs/api/java/io/Reader.html#skip-long-
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