在java中append是什么_Java中的append方法是什么？
java.lang.StringBuffer的append(char c)方法将char参数的字符串表示形式附加到此序列。参数将附加到此序列的内容中。该序列的长度增加1。
示例import java.lang.*;
public class StringBufferDemo {
public static void main(String[] args) {
StringBuffer buff = new StringBuffer("tuts ");
System.out.println("buffer = " + buff);
//将char参数作为字符串追加到字符串缓冲区。
buff.append(A);
//之后打印字符串缓冲区
System.out.println("After append = " + buff);
buff = new StringBuffer("abcd ");
System.out.println("buffer = " + buff);
//将char参数作为字符串追加到字符串缓冲区。
buff.append(!);
//之后打印字符串缓冲区
System.out.println("After append = " + buff);
}
}
输出结果buffer = tuts
After append = tuts A
buffer = abcd
After append = abcd !
java.lang.StringBuffer的append(char c)方法将char参数的字符串表示形式附加到此序列。参数将附加到此序列的内容中。该序列的长度增加1。 示例import java.lang.*; public class StringBufferDemo { public static void main(String[] args) { StringBuffer buff = new StringBuffer("tuts "); System.out.println("buffer = " + buff); //将char参数作为字符串追加到字符串缓冲区。 buff.append(A); //之后打印字符串缓冲区 System.out.println("After append = " + buff); buff = new StringBuffer("abcd "); System.out.println("buffer = " + buff); //将char参数作为字符串追加到字符串缓冲区。 buff.append(!); //之后打印字符串缓冲区 System.out.println("After append = " + buff); } } 输出结果buffer = tuts After append = tuts A buffer = abcd After append = abcd !