标签：sb2 sb1 StringBuffer worldworld 作为 System 参数传递 hello
package com.shujia.day11;
public class stringBufferDemo1 {
public static void main(String[] args) {
String s1 = "hello";
//StringBuffer作为参数传递
StringBuffer sb1 = new StringBuffer("hello");
StringBuffer sb2 = new StringBuffer("world");
System.out.println("sb1: "+sb1+", sb2: "+sb2);
fun1(sb1,sb2);
System.out.println("sb1: "+sb1+", sb2: "+sb2);
}
public static void fun1(StringBuffer sb1,StringBuffer sb2){
sb1 = sb2;
sb2.append(sb1);
System.out.println("sb1: "+sb1+", sb2: "+sb2);
}
}
结果为
sb1: hello, sb2: world
sb1: worldworld, sb2: worldworld
sb1: hello, sb2: worldworld
标签：sb2,
sb1,
StringBuffer,
worldworld,
作为,
System,
参数传递,
hello
From： https://www.cnblogs.com/qiwei-bigdata/p/18349872