java IO输入输出格式1、输入格式1 1 5 10 20 6 30 import java.util.Scanner

1、输入格式1
1 5
10 20
6
30
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner in = new Scanner(System.in);
while(in.hasNextInt()){
int a = in.nextInt();
int b = in.nextInt();
System.out.println(a + b);
}
}
}
2、输入格式2
2
1 5
10 20
6
30
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner in = new Scanner(System.in);
int t = in.nextInt();
for(int i = 0; i < t; i++){
int a = in.nextInt();
int b = in.nextInt();
System.out.println(a + b);
}
}
}
3、输入格式3
1 5
10 20
0 0
6
30
import java.util.Scanner;
public class Main{
public static void main(String args[]){
Scanner sc=new Scanner(System.in);
while(sc.hasNext()){
int m=sc.nextInt();
int n=sc.nextInt();
if(m!=0 && n!=0){
System.out.println(m+n);
}
}
}
}
4、输入格式4
4 1 2 3 4
5 1 2 3 4 5
0
10
15
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
int m=sc.nextInt();
if(m==0){
break;
}
int i=0,sum=0;
while(i<m){
sum += sc.nextInt();
i++;
}
System.out.println(sum);
}
}
}
5、输入格式5
2
4 1 2 3 4
5 1 2 3 4 5
10
15
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int t=sc.nextInt();
int k=0;
while(k<t){
int m=sc.nextInt();
int i=0,sum=0;
while(i<m){
sum += sc.nextInt();
i++;
}
System.out.println(sum);
k++;
}
}
}
6、输入格式6
4 1 2 3 4
5 1 2 3 4 5
10
15
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
int m=sc.nextInt();
int i=0,sum=0;
while(i<m){
sum += sc.nextInt();
i++;
}
System.out.println(sum);
}
}
}
7、输入格式7
1 2 3
4 5
0 0 0 0 0
6
9
0
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner input = new Scanner(System.in);
while (input.hasNext()) {
String[] s = input.nextLine().split(" ");
int sum = 0;
for (int i = 0; i < s.length; i++) {
sum += Integer.parseInt(s[i]);
}
System.out.println(sum);
}
}
}
8、输入格式8
5
c d a bb e
a bb c d e
import java.util.*;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
String[] s = new String[n];
for(int i = 0; i < n; i ++){
s[i] = sc.next();
}
Arrays.sort(s);
for(int i = 0;i < n; i ++){
if(i != n - 1){
System.out.print(s[i] + " ");
}else{
System.out.print(s[i]);
}
}
}
}
9、输入格式9
a c bb
f dddd
nowcoder
a bb c
dddd f
nowcoder
import java.util.Arrays;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNextLine()){
String[] str = sc.nextLine().split(" “);
Arrays.sort(str);
int n = str.length;
for(int i = 0;i < n;++i){ //在牛客上编译竟然提示格式错误；
if(i == n-1){
System.out.println(str[i]);
}else{
System.out.print(str[i] + " “);
}
}
}
}
}
10、输入格式10
a,c,bb
f,dddd
nowcoder
a,bb,c
dddd,f
nowcoder
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner input = new Scanner(System.in);
while(input.hasNext()){
String[] ss = input.nextLine().split(”,”);
Arrays.sort(ss);
String ans = “”;
for(int i = 0; i < ss.length; ++i){
if(i == ss.length - 1){
ans += ss[i];
break;
}
ans += ss[i] + “,”;
}
System.out.println(ans);
}
}
}
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原文链接：blog.csdn.net/ljsy8273123…