题目:任意输入一些数字,以逗号隔开,请按升序或降序排列!
我是这样写的!
public class Test3 {
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
String line=in.nextLine();
String [] ma=line.split(",");
int[] t=new int[ma.length];
int temp;
for(int i=0;i<ma.length;i++){
t[i]=Integer.parseInt(ma[i]);
}
for(int j=0;j<ma.length;j++){
if(t[j]<t[j+1]){
temp=t[j];
t[j]=t[j+1];
t[j+1]=temp;
}
}
System.out.println(t);
}}但运行报异常!我是菜鸟!请哪位高手指导一下!
谢谢!
我是这样写的!
public class Test3 {
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
String line=in.nextLine();
String [] ma=line.split(",");
int[] t=new int[ma.length];
int temp;
for(int i=0;i<ma.length;i++){
t[i]=Integer.parseInt(ma[i]);
}
for(int j=0;j<ma.length;j++){
if(t[j]<t[j+1]){
temp=t[j];
t[j]=t[j+1];
t[j+1]=temp;
}
}
System.out.println(t);
}}但运行报异常!我是菜鸟!请哪位高手指导一下!
谢谢!
public class Test{
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
String line=in.nextLine();
String [] ma=line.split(","); int[] t=new int[ma.length];
int temp;
for(int i=0;i <ma.length;i++){
t[i]=Integer.parseInt(ma[i]);
}
int max=t[0];
for(int j=0;j <ma.length;j++){
if( max<t[j]){
max=t[j];
}
}
System.out.println("max:"+max);
System.out.println(Arrays.toString(ma));
} }
Scanner in = new Scanner(System.in);
String line = in.nextLine();
String[] ma = line.split(",");
System.out.println(ma.length);
int[] t = new int[ma.length];
//转换成int 并且赋值
for (int i = 0; i < ma.length; i++) {
t[i] = Integer.parseInt(ma[i]);
System.out.println(t[i]); }
//冒泡排序交换
int temp;
for (int i = 0; i < ma.length; i++) {
for (int j = 0; j < ma.length - 1 - i; j++) {
if (t[j] > t[j + 1]) {
temp = t[j];
t[j] = t[j + 1];
t[j + 1] = temp;
}
}
}
//输出
for (int i = 0; i < 10; i++) {
System.out.println("第" + (i + 1) + "个数是:" + ma[i]);
}
}}
import java.io.*;
import java.util.*;
public class Test
{ public static void main(String[] args)
{
try
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String line=br.readLine();
String [] ma=line.split(",");
int[] t=new int[ma.length];
for (int i = 0; i < t.length; i++) {
t[i]=Integer.parseInt(ma[i]);
}
Arrays.sort(t);
for (int i : t) {
System.out.print(i+" ");
}
}
catch(IOException e)
{
System.out.println(e);
} }
}
http://java.sun.com/j2se/1.4.2/docs/api/java/util/Arrays.html#sort(int[])