import java.util.ArrayList; import java.util.Iterator; import java.util.Scanner;public class Csdn { public static void main(String[] args) { System.out.println("input : "); Scanner sc = new Scanner(System.in); String s = sc.nextLine(); String[] ss = s.split(" ");
ArrayList al = new ArrayList(); for(int i = 0;i<ss.length;i++) { al.add(Integer.valueOf(ss[i])); } //输出arrayList中的数据,测试是否存入正确 for(int j=0;j<al.size();j++) { System.out.print(al.get(j)+" "); } } }应该还有更好的方法。期待中...
大概可以这样:import java.util.*;public class GetInt { public static void main(String[] args) { ArrayList<Integer> list = new ArrayList<Integer>(); Scanner sc = new Scanner(System.in); String s = sc.nextLine(); while(s != null && !("".equals(s))) { list.add(Integer.parseInt(s)); s = sc.nextLine(); } for(Integer i : list) { System.out.println(i); } } }
Scanner sc=new Scanner(); List list=new ArrayList(); while(true){ try{ int num=Integer.parseInt(sc.next()); list.add(num); }catch(NumberFormatException){ System.out.println("请输入整数") } }
import javax.swing.JOptionPane; public class test{ private int[] arraylist; public static void main(String [] args){ test te=new test(); te.capture(3);
} public void capture(int n){ arraylist=new int[n]; for (int i=0;i<n;i++){ int num=i+1; String temp=JOptionPane.showInputDialog(null,"输入第"+num+"个数"); arraylist[i]=Integer.parseInt(temp); } for (int i=0;i<n;i++) System.out.println("第"+i+"个数为"+ arraylist[i]);
import java.util.Iterator;
import java.util.Scanner;public class Csdn
{
public static void main(String[] args)
{
System.out.println("input : ");
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
String[] ss = s.split(" ");
ArrayList al = new ArrayList();
for(int i = 0;i<ss.length;i++)
{
al.add(Integer.valueOf(ss[i]));
}
//输出arrayList中的数据,测试是否存入正确
for(int j=0;j<al.size();j++)
{
System.out.print(al.get(j)+" ");
}
}
}应该还有更好的方法。期待中...
public static void main(String[] args) {
ArrayList<Integer> list = new ArrayList<Integer>();
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
while(s != null && !("".equals(s))) {
list.add(Integer.parseInt(s));
s = sc.nextLine();
}
for(Integer i : list) {
System.out.println(i);
}
}
}
Scanner sc=new Scanner();
List list=new ArrayList();
while(true){
try{
int num=Integer.parseInt(sc.next());
list.add(num);
}catch(NumberFormatException){
System.out.println("请输入整数")
}
}
public class test{
private int[] arraylist;
public static void main(String [] args){
test te=new test();
te.capture(3);
}
public void capture(int n){
arraylist=new int[n];
for (int i=0;i<n;i++){
int num=i+1;
String temp=JOptionPane.showInputDialog(null,"输入第"+num+"个数");
arraylist[i]=Integer.parseInt(temp);
}
for (int i=0;i<n;i++)
System.out.println("第"+i+"个数为"+ arraylist[i]);
}
}