Question

求教大神这道java题整么做，给代码，谢了

Answer 1

第一种方法，使用冒泡排序法：
public class Test {
public static void sortNames(String[] namas){
int len = namas.length;
String temp = null;
for( int i = 0; i < len - 1; i++){
for( int j = 0; j < len - 1 - i; j++){
if((namas[j].compareTo(namas[j + 1])) > 0){
temp = namas[j];
namas[j] = namas[j + 1];
namas[j + 1] = temp;
}
}
}
}
public static void print(String[] list){

for (String str :list){
System.out.print(str+" ");
}
}
public static void main(String[] args){

String[] names ={"Tom","Jack","Merry","Smith","Sunny"};
System.out.println("*****排序前*****");
print(names);
System.out.println("");
System.out.println("*****排序后******");
sortNames(names);
print(names);
}
}
另一种方法，用Arrays sort
import java.util.Arrays;

public class TestSort{

public static void main(String[] args) {

String[] strArr={"Tom","Jack","Merry","Smith","Sunny"};

System.out.println("*****排序前*****");
for(int i=0;i<strArr.length;i++){

System.out.print(" "+strArr[i]);
}

Arrays.sort(strArr);
System.out.println();
System.out.println("*****排序后*****");
for(int i=0;i<strArr.length;i++){

System.out.print(" "+strArr[i]);
}

}

}