Java 中的 PrintStream write(byte[]，int，int)方法，示例
原文:https://www . geesforgeks . org/print stream-write byte-int-int-method-in-Java-with-examples/
Java 中 【打印流】 类的 write(byte[]，int，int) 方法用于在流上写入指定字节字符数组的指定部分。这个字节字符数组被作为一个参数。要写入的字节字符的起始索引和长度也作为参数。
语法:
public void write(字节[]字节数组、int startingIndex、int lengthofchararray)
参数:该方法接受三个强制参数:
- 字节数组是要写入流中的字节字符数组。
- startingIndex 是开始索引，从该索引中获取字节字符的一部分。
- 长度字符串是要写入流中的字节字符的长度。
返回值:此方法不返回值。
下面的方法说明了 write(byte[]，int，int)方法的工作原理:
程序 1:
// Java program to demonstrate
// PrintStream write(byte[], int, int) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintStream instance
PrintStream stream
= new PrintStream(System.out);
// Get the byteacter array
// to be written in the stream
byte[] byteArray = { 65, 66, 67 };
// Get the starting index
int startingIndex = 0;
// Get the length of byte
int lengthOfCharArray = 1;
// Write the portion of the byteArray
// to this stream using write() method
// This will put the byteArray in the stream
// till it is printed on the console
stream.write(byteArray,
startingIndex,
lengthOfCharArray);
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
A
程序 2:
// Java program to demonstrate
// PrintStream write(byte[], int, int) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintStream instance
PrintStream stream
= new PrintStream(System.out);
// Get the byteacter array
// to be written in the stream
byte[] byteArray = { 97, 98, 99 };
// Get the starting index
int startingIndex = 2;
// Get the length of byte
int lengthOfCharArray = 1;
// Write the portion of the byteArray
// to this stream using write() method
// This will put the byteArray in the stream
// till it is printed on the console
stream.write(byteArray,
startingIndex,
lengthOfCharArray);
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
c
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