Java Vector sort()
Java Vector类的
sort()方法用于根据由Java引发的顺序对向量进行排序。
语法
下面是
sort()方法的声明:
Public void sort(Comparator<? super E> c)
参数
| 参数 |
说明 |
必需/可选 |
| c |
比较器，用于比较向量元素。 |
必需 |
返回
此方法的返回类型为
void ，因此，它不返回任何内容。
异常
NA
兼容版本
Java 1.2及更高版本
示例1
import java.util.*;
public class VectorSortExample1 {
public static void main(String arg[]) {
//Create an empty vector
Vector<Integer> vec = new Vector<>();
//Add elements in the vector
vec.add(1);
vec.add(5);
vec.add(2);
vec.add(4);
vec.add(3);
//Display the vector elements
System.out.println("Components of the vector: "+vec);
//Sorting the vector
Collections.sort(vec);
//Displaying the vector elements after sort() method
System.out.println("Components of the vector after sorting: "+vec);
}
}
输出:
Components of the vector: [1, 5, 2, 4, 3]
Components of the vector after sorting: [1, 2, 3, 4, 5]
示例2
import java.util.*;
public class VectorSortExample2 {
public static void main(String arg[]) {
//Create an empty vector
Vector < String > vec = new Vector < String > ();
//Add elements in the vector
vec.add("White");
vec.add("Green");
vec.add("Black");
vec.add("Orange");
System.out.println("The vector elements are: ");
//Display the vector elements
for (String colors : vec) {
System.out.println(" "+colors);
}
//Sorting the vector
Collections.sort(vec);
//Displaying the vector elements after sort() method
System.out.println("The vector elements after sort() method are: ");
for (String colors : vec) {
System.out.println(" "+colors);
}
}
}
输出:
The vector elements are:
White
Green
Black
Orange
The vector elements after sort() method are:
Black
Green
Orange
White
