Java FilterReader.read()方法範例

FilterReader.read()方法範例

FilterReader.read()具有以下語法。

public int read()  throws IOException

範例

在下面的程式碼中展示了如何使用FilterReader.read()方法。

import java.io.FilterReader;
import java.io.Reader;
import java.io.StringReader;

public class Main {// from  ｗ ｗW.yI  I B A I .CO m 
  public static void main(String[] args) throws Exception {

    int i = 0;
    char c;

    // create new reader
    Reader r = new StringReader("ABCDEF");

    // create new filter reader
    FilterReader fr = new FilterReader(r) {
    };

    // read till the end of the stream
    while ((i = fr.read()) != -1) {
      // converts integer to character
      c = (char) i;

      // print
      System.out.println("Character read: " + c);
    }

  }
}

上面的程式碼生成以下結果。

Character read: A
Character read: B
Character read: C
Character read: D
Character read: E
Character read: F