InputReader can covert bytes in different encodings to characters.
BufferedReader has a back-end reader which speeds up reading if you are only retrieving small parts at a time.
BufferedReader can mark a given position, and after already reading the bytes, reset back to the previous position.
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));This line will create a new BufferedReader object, which reads from System.in (standard input). The InputStreamReader part is used to convert System.in (which is an InputStream) to a Reader object (which can be used by BufferedReader).After creating br, you can read input from the user:String input = br.readLine();The line above will allow the user to type in anything they want, press the button, and have what they typed in stored in input.
The BufferedReader class provides buffering to your Reader's. Buffering can speed up IO quite a bit. Rather than read one character at a time from the network or disk, you read a larger block at a time. This is typically much faster, especially for disk access and larger data amounts. The main difference between BufferedReader and BufferedInputStream is that Reader's work on characters (text), wheres InputStream's works on raw bytes. To add buffering to your Reader's simply wrap them in a BufferedReader. Here is how that looks: Reader input = new BufferedReader( new FileReader("c:\\data\\input-file.txt"));
// create an BufferedReader from the standard input stream BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String currentLine = ""; int total = 0; // read integers System.out.print("Input an integer: "); while (!(currentLine = in.readLine()).equals("")) { int input = 0; try { input = Integer.valueOf(currentLine); total += input; } catch (final NumberFormatException ex) { System.out.println("That was not an integer."); } System.out.print("Input an integer: "); }
import java.io.*; class aeven { public static void main(String[] args) { try{ BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter 1st number : "); int num1 = Integer.parseInt(br1.readLine()); System.out.println("Enter 2nd number : "); int num2 = Integer.parseInt(br1.readLine()); System.out.println("Odd Numbers : "); for (int i=num1;i <=num2 ; i++) { if(i%2!=0 ) { System.out.print(i+ ", "); } } } catch(Exception e){} } }
import java.io.IOException;import java.io.BufferedReader;import java.io.InputStreamReader;class format{public static void main(String args[])throws IOException{BufferedReader y=new BufferedReader(new InputStreamReader(System.in));System.out.println("Enter word");String w=y.readLine();for (int a=w.length()-1;a>=0;a--){char c=w.charAt(a);System.out.print(c);}}}
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));This line will create a new BufferedReader object, which reads from System.in (standard input). The InputStreamReader part is used to convert System.in (which is an InputStream) to a Reader object (which can be used by BufferedReader).After creating br, you can read input from the user:String input = br.readLine();The line above will allow the user to type in anything they want, press the button, and have what they typed in stored in input.
to input a character follow this code: InputStreamReader is=new InputStreamReader(System.in); BufferedReader bf=new BufferedReader(is); ch=bf.readLine(); //to display a character simply write System.out.println() i hope dis vl help u
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));This line will create a new BufferedReader object, which reads from System.in (standard input). The InputStreamReader part is used to convert System.in (which is an InputStream) to a Reader object (which can be used by BufferedReader).After creating br, you can read input from the user:String input = br.readLine();The line above will allow the user to type in anything they want, press the button, and have what they typed in stored in input.
import java.io.*; class gar { protected static void main()throws IOException { BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter a value: "); int a=Integer.parseInt(in.readLine()); } }
Both are same
String startCommandScript[] = { "cmd.exe", "/c", "sc", "Start", "MySQL" }; Process process; try { process = new ProcessBuilder(commandScript).start(); InputStream is = process.getInputStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line; //System.out.printf("Output of running cmd /c dir is:"); while ((line = br.readLine()) != null) { // if (line.matches("controlservice failed")) { // System.out.println("......."); // } // System.out.println(line); } br.close(); isr.close(); is.close(); process.destroy(); } catch (IOException e) { e.printStackTrace(); }
The BufferedReader class provides buffering to your Reader's. Buffering can speed up IO quite a bit. Rather than read one character at a time from the network or disk, you read a larger block at a time. This is typically much faster, especially for disk access and larger data amounts. The main difference between BufferedReader and BufferedInputStream is that Reader's work on characters (text), wheres InputStream's works on raw bytes. To add buffering to your Reader's simply wrap them in a BufferedReader. Here is how that looks: Reader input = new BufferedReader( new FileReader("c:\\data\\input-file.txt"));
import java.io.*; class sing { protected static void main()throws IOException { BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); int a[]=new int[5]; for(byte i=0;i<5;i++) { System.out.print("Enter the value of "+i+" : "); a[i]=Integer.parseInt(in.readLine()); } byte b=0; for(byte i=0;i<5;i++) { if(b>a[i]) b=a[i]; } }}
// create an BufferedReader from the standard input stream BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String currentLine = ""; int total = 0; // read integers System.out.print("Input an integer: "); while (!(currentLine = in.readLine()).equals("")) { int input = 0; try { input = Integer.valueOf(currentLine); total += input; } catch (final NumberFormatException ex) { System.out.println("That was not an integer."); } System.out.print("Input an integer: "); }
import java.io.*; class aeven { public static void main(String[] args) { try{ BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter 1st number : "); int num1 = Integer.parseInt(br1.readLine()); System.out.println("Enter 2nd number : "); int num2 = Integer.parseInt(br1.readLine()); System.out.println("Odd Numbers : "); for (int i=num1;i <=num2 ; i++) { if(i%2!=0 ) { System.out.print(i+ ", "); } } } catch(Exception e){} } }
import java.io.*; public class pmn { public static void main(String[] args) throws Exception{ int i; BufferedReader bf = new BufferedReader( new InputStreamReader(System.in)); System.out.println("Enter number:"); int num = Integer.parseInt(bf.readLine()); System.out.println("Prime number: "); for (i=1; i < num; i++ ){ int j; for (j=2; j<i; j++){ int n = i%j; if (n==0){ break; } } if(i == j){ System.out.print(" "+i); } } } }
import java.io.IOException;import java.io.BufferedReader;import java.io.InputStreamReader;class format{public static void main(String args[])throws IOException{BufferedReader y=new BufferedReader(new InputStreamReader(System.in));System.out.println("Enter word");String w=y.readLine();for (int a=w.length()-1;a>=0;a--){char c=w.charAt(a);System.out.print(c);}}}