Question

编写JAVA应用程序,实现字符串A连接到字符串B的后面,得到一个BA串新,并输出新传!

class ch
{public static void main (String args[])
{String a[]={"Tom like it too.","Mary like drinking coffee,"};
for (int i=0;i<a.length-1;i++)
{for(int j=i+1;j<a.length;j++)
{if(a[j].compareTo(a[i])<0)
{String temp=a[i];
a[i]=a[j];
a[j]=temp;
}
}
}
for(int i=0;i<a.length;i++)
{System.out.print(" "+a[i]);
}
}
}

Answer 1

package com.minrisoft;

public class fm {
public static class StringConcatenation {
public static void main(String[] args) {
/*连接字符串*/String message1 = "Hello " + "World!"; // 使用+连接字符串
String message2 = "Hello ".concat("World!"); // 使用concat()方法连接字符串
System.out.println("使用+连接字符串:" + message1);
System.out.println("使用concat()方法连接字符串：" + message2);{{{}}}

Answer 2

String A="aaaaaaaa";
String B="bbbb";
String C=null;
C=B+A;

Answer 3

String strA = "A" ;
String strB = "B" ;
String strC = strB + strA ;
System.out.println(strC);

是这样的吗？不是再说明。