Java中PrintStream类的append(CharSequence,int,int)方法用于在流上附加指定charSequence的指定部分。此charSequence用作参数。要写入的开始索引和结束索引也被当作参数。
用法:
public void append(CharSequence charSequence, int startingIndex, int endingIndex)
参数:此方法接受三个强制参数:
- charSequence这是要写入流中的charSequence。
- startingIndex这是获取字符部分的起始索引。
- endingIndex这是要写入流的结束索引。
返回值:此方法不返回任何值。
下面的方法说明了append(CharSequence,int,int)方法的用法方式:
程序1:
// Java program to demonstrate
// PrintStream append(CharSequence, 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 charSequence
// to be written in the stream
CharSequence charSequence = "GeeksForGeeks";
// Get the starting index
int startingIndex = 0;
// Get the length of char
int endingIndex = 5;
// Write the portion of the charSequence
// to this stream using append() method
// This will put the charSequence in the stream
// till it is printed on the console
stream.append(charSequence,
startingIndex,
endingIndex);
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
Geeks
程序2:
// Java program to demonstrate
// PrintStream append(CharSequence, 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 charSequence
// to be written in the stream
CharSequence charSequence = "GFG";
// Get the starting index
int startingIndex = 2;
// Get the length of char
int endingIndex = 3;
// Write the portion of the charSequence
// to this stream using append() method
// This will put the charSequence in the stream
// till it is printed on the console
stream.append(charSequence,
startingIndex,
endingIndex);
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
G
相关用法
- Java PrintStream write(int)用法及代码示例
- Java PrintStream print(int)用法及代码示例
- Java PrintStream close()用法及代码示例
- Java PrintStream setError()用法及代码示例
- Java PrintStream println(int)用法及代码示例
- Java PrintStream clearError()用法及代码示例
- Java PrintStream flush()用法及代码示例
- Java PrintStream checkError()用法及代码示例
- Java PrintStream println()用法及代码示例
- Java PrintStream print(String)用法及代码示例
- Java PrintStream write(byte[], int, int)用法及代码示例
- Java PrintStream print(double)用法及代码示例
- Java Properties list(PrintStream)用法及代码示例
- Java PrintStream append(CharSequence)用法及代码示例
- Java PrintStream print(char[])用法及代码示例
注:本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 PrintStream append(CharSequence, int, int) method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。