import java.util.Vector;public class Test { public static void main(String[] args) { Vector vector = new Vector(); int size = args.length; for (int i=0; i<size; i++) { vector.add(args[i]); }
public static Vector sortVector(Vector vector) { int size = vector.size(); int i,j; for (j=0; j<size-1; j++) { for (i=j; i<size; i++) { String firstString = (String)vector.elementAt(j); String curString = (String)vector.elementAt(i); if (firstString.compareTo(curString)<0) { vector.setElementAt(curString,j); vector.setElementAt(firstString,i); } } } return vector; } } 运行结果: java Test aa ab ac aaa bb cc ad ca cb dd dc dc dd cb ca ad cc bb aaa ac ab aa dd dc cc cb ca bb ad ac ab aaa aa
public static void main(String[] args) { Vector<String> v = new Vector<String>(); LineNumberReader lnr; lnr = new LineNumberReader(new InputStreamReader(System.in)); String string=""; try { while (!(string=lnr.readLine()).equalsIgnoreCase("end")){ v.add(string); } } catch (IOException ex) { ex.printStackTrace(); } System.out.println("-----倒序显示-----"); for (int i=v.size()-1;i>=0;i--)System.out.println(v.get(i));
for(int i=0;i<v.size()-1;i++) for (int j=i+1;j<v.size();j++) if (v.get(i).compareTo(v.get(j))>0){ String temp = v.get(i); v.set(i,v.get(j)); v.set(j,temp); } System.out.println("-----降序显示-----"); for (int i=v.size()-1;i>=0;i--)System.out.println(v.get(i)); }
import java.io.*;
class Input
{static InputStreamReader in;
static BufferedReader reader;
static
{in=new InputStreamReader(System.in);
reader=new BufferedReader(in);
}
static String readString()
{String s="";
try
{ s=reader.readLine(); } catch(IOException e)
{System.out.println(e);
System.exit(0);
}
return s;
} static char readChar()
{char ch=''a'';
try
{
String s=readString();
ch=s.charAt(0); }
catch(Exception e)
{System.out.println("输入的数据类型不对,程序将退出");
System.exit(0);
}
return ch;
}
static int readInt()
{String s=readString();
int i=0;
try{
i=Integer.parseInt(s);
}
catch(Exception e)
{System.out.println("输入的数据类型不对,程序将退出");
System.exit(0);
}
return i;
}
static double readDouble()
{String s=readString();
double d=0.0;
try
{d=Double.parseDouble(s);
}
catch(Exception e)
{System.out.println("输入的数据类型不对,程序将退出");
System.exit(0);
}
return d;
}
static float readFloat()
{
String s=readString();
float f=0.0f;
try
{
f=Float.parseFloat(s);
}
catch(Exception e)
{ System.out.println("输入的数据类型不对,程序将退出");
System.exit(0);
}
return f;
}
} 用法举例,从键盘输入十个整数:
class InoutData
{public static void main(String args[])
{ int a[]=new int[10];
for(int i=0;i<10;i++)
{ System.out.println("请输入数");
a[i]=Input.readInt();
}
for(int i=0;i<10;i++)
System.out.println("a["+i+"]="+a[i]);
}
}
{
Vector vector = new Vector();
int size = args.length;
for (int i=0; i<size; i++)
{
vector.add(args[i]);
}
//到序显示
size = vector.size();
for (int i=size -1; i>=0;i--)
{
System.out.print(vector.elementAt(i));
System.out.print(" ");
}
System.out.println();
//将vector种的数据降序排列
vector = sortVector(vector);
//显示
size = vector.size();
for (int i=0; i<size;i++)
{
System.out.print(vector.elementAt(i));
System.out.print(" ");
}
}
public static Vector sortVector(Vector vector)
{
int size = vector.size();
int i,j;
for (j=0; j<size-1; j++)
{
for (i=j; i<size; i++)
{
String firstString = (String)vector.elementAt(j);
String curString = (String)vector.elementAt(i);
if (firstString.compareTo(curString)<0)
{
vector.setElementAt(curString,j);
vector.setElementAt(firstString,i);
}
}
}
return vector;
}
}
运行结果:
java Test aa ab ac aaa bb cc ad ca cb dd dc
dc dd cb ca ad cc bb aaa ac ab aa
dd dc cc cb ca bb ad ac ab aaa aa
Vector<String> v = new Vector<String>();
LineNumberReader lnr;
lnr = new LineNumberReader(new InputStreamReader(System.in));
String string="";
try {
while (!(string=lnr.readLine()).equalsIgnoreCase("end")){
v.add(string);
}
} catch (IOException ex) {
ex.printStackTrace();
}
System.out.println("-----倒序显示-----");
for (int i=v.size()-1;i>=0;i--)System.out.println(v.get(i));
for(int i=0;i<v.size()-1;i++)
for (int j=i+1;j<v.size();j++)
if (v.get(i).compareTo(v.get(j))>0){
String temp = v.get(i);
v.set(i,v.get(j));
v.set(j,temp);
}
System.out.println("-----降序显示-----");
for (int i=v.size()-1;i>=0;i--)System.out.println(v.get(i));
}
public static void reverse(Vector<String> v){
String[]s = (String[])(v.toArray(new String[0]));
Arrays.sort(s,Collections.reverseOrder());
System.out.println(Arrays.toString(s));
}