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import java.io.File; import java.io.FileOutputStream; import java.io.IOException;
public class OutputStreamExer { public static void main(String[] args) throws IOException { exer01(); exer02(); exer03(); exer04(); exer05(); }
private static void exer01() throws IOException { File file = new File("out.txt"); FileOutputStream fileOutputStream = new FileOutputStream(file,true); fileOutputStream.write(-3); fileOutputStream.write(23); fileOutputStream.flush(); fileOutputStream.close(); }
private static void exer02() throws IOException { File file = new File("out.txt"); FileOutputStream fileOutputStream = new FileOutputStream(file,true); byte[] b = "java程序员".getBytes();
fileOutputStream.write(b); fileOutputStream.flush(); fileOutputStream.close(); }
private static void exer03() throws IOException { FileOutputStream fileOutputStream = new FileOutputStream(new File("out.txt")); byte[] bytes = "Hello world".getBytes(); fileOutputStream.write(bytes,3,4); fileOutputStream.flush(); fileOutputStream.close(); }
private static void exer04() throws IOException { FileOutputStream fileOutputStream = new FileOutputStream("output.txt"); fileOutputStream.write(97); fileOutputStream.close(); }
private static void exer05() throws IOException { FileOutputStream fileOutputStream = new FileOutputStream(new File("out.txt")); byte[] b = {97,98,99,100,101,102,103}; for (int i = 0;i < b.length;i++){ fileOutputStream.write(b[i]); fileOutputStream.write("\r\n".getBytes()); } fileOutputStream.close(); }
}
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