自定义对象排序的问题，谢了

[gengchao1981]

import java.util.Arrays;

class StudentArray
{
Student[] ss1=new Student[]{new Student(11,"张三"),new Student(12,"李四"),new Student(13,"王五")};
Arrays.sort(ss1);
for(int i=0;i<ss1.length;i++)
{
System.out.println(ss1[i]);
}
}

class Student implements Comparable
{
int num;
String name;
Student(int num,String name)
{
this.num=num;
this.name=name;
}

public String toSring()
{
return "num= "+num+" name="+name;
}
public int compareTo(Object o)
{
Student s=(Student)o;
return num>s.num ? 1 : (num==s.num ? 0 : -1);
}
}

这段代码编译不过去，哪里出了问题，谢谢了

[andycpp]

必须有且仅有一个类必须是Public的，并且和源文件同名，这一点你做到了吗？

[ghosert]

JAVA 程序要从pbulic static void main(String[] args){// you code} 入口，才能运行

[gengchao1981]

明白了，犯了一个低级的失误

[ghosert]

import java.util.Arrays;

class StudentArray
{
public static void main(String[] args)
{
Student[] ss1=new Student[]{new Student(11,"张三"),new Student(12,"李四"),new Student(13,"王五")};
Arrays.sort(ss1);
for(int i=0;i<ss1.length;i++)
{
System.out.println(ss1[i]);
}
}
}

class Student implements Comparable
{
int num;
String name;
Student(int num,String name)
{
this.num=num;
this.name=name;
}

public String toString()
{
return "num= "+num+" name="+name;
}
public int compareTo(Object o)
{
Student s=(Student)o;
return num>s.num ? 1 : (num==s.num ? 0 : -1);
}
}

改成这样，public String toSring() 也写错了。应该是 toString()

结贴给分