1.public class TestString{
public static void main(String[] args){
System.out.print("您共输入了"+args.length+"个单词,您的输入是:");
for(int i=0;i<args.length;i++){
System.out.print(args[i]+" ");
}
}
}
2.
class Animal{
Animal(){
System.out.println("I am an animal");
}
public static void main(String[] args){
Animal a = new Animal();
}
}
public class PrintBack {
public static void main(String[] args) {
System.out.println("请输入单词 : ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
int count = 1;
try {
String str = in.readLine();
for (int i = 0; i < str.length(); i++) {
char ch = str.charAt(i);
if((int)ch == 32){
count++;
}
}
if(count<10){
System.out.print("您共输入了" + count + "个单词.");
System.out.println("您的输入是 " + str);
}
else{
System.out.println("您输入的单词超过了10个!");
}
}
catch (IOException ex) {
ex.printStackTrace();
}
}
}楼上的代码有问题,而且不能完成所需的功能
是在运行后才要求用户输入的,而不是指定参数!
第二题就不说了
import java.io.*;
public class PrintBack {
public static void main(String[] args) {
System.out.println("请输入单词 : ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
int count = 1;
try {
String str = in.readLine();
if(str.length()<14){
System.out.println("只能识别 java printback 指令!");
return;
}
String temp = str.substring(0,14);
String realStr = str.substring(15,str.length());
if(!temp.equals("java printback")){
System.out.println("只能识别 java printback 指令!");
return;
}
for (int i = 0; i < realStr.length(); i++) {
char ch = realStr.charAt(i);
if(ch == ' '){
count++;
}
}
if(count<10){
System.out.print("您共输入了" + count + "个单词.");
System.out.println("您的输入是 " + realStr);
}
else{
System.out.println("您输入的单词超过了10个!");
}
}
catch (IOException ex) {
ex.printStackTrace();
}
}
}
1.public class TestString{
public static void main(String[] args){
System.out.print("您共输入了"+args.length+"个单词,您的输入是:");
for(int i=0;i<args.length;i++){
System.out.print(args[i]+" ");
}
}
}
2.
class Animal{
Animal(){
System.out.println("I am an animal");
}
public static void main(String[] args){
Animal a = new Animal();
}
}
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支持这个写法,简单,明了!