java printwrite_Java PrintWriter write(int)用法及代码示例
Java中的PrintWriter类的write(int)方法用于在流上写入指定的字符。使用以整数值传递的字符的ASCII值指定此字符。该整数值用作参数。
用法:
public void write(int ascii)
参数:此方法接受强制性参数ascii,该参数是要写入流中的字符的ASCII值。
返回值:此方法不返回任何值。
以下方法说明了write(int)方法的用法:
示例1:
// Java program to demonstrate
// PrintWriter write(int) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter writer
= new PrintWriter(System.out);
// Write the character '0' to this writer
// using write() method
// This will put the string in the stream
// till it is printed on the console
writer.write(48);
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
0
示例2:
// Java program to demonstrate
// PrintWriter write(int) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter writer
= new PrintWriter(System.out);
// Write the character 'A' to this writer
// using write() method
// This will put the string in the stream
// till it is printed on the console
writer.write(65);
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
A
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