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import java.io.*;
import java.util.*;
import java.math.*;
public class ShuXueFunction {
public ShuXueFunction() {
}
public void fun(int num)throws Exception{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
for(int i=0;i<num;i++){
Float.parseFloat(br.readLine());
}
}
public static void main(String[] args) throws Exception{
new ShuXueFunction().fun(5);
}
}
import java.io.*;
import java.util.*;
import java.math.*;
public class ShuXueFunction {
public ShuXueFunction() {
}
public void fun(int num)throws Exception{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
for(int i=0;i<num;i++){
System.out.println();
Float.parseFloat(br.readLine());
}
}
public static void main(String[] args) throws Exception{
new ShuXueFunction().fun(5);
}
}
public class ShuXueFunction {
public ShuXueFunction() {
}
public void fun(int num)throws Exception{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
for(int i=0;i<num;i++){
String str = br.readLine();
try {
Float.parseFloat(str);
} catch (NumberFormatException e) {
System.out.println("badline:" + str);
}
}
}
public static void main(String[] args) throws Exception{
new ShuXueFunction().fun(5);
}
}
import java.io.*;
import java.util.*;
import java.math.*;
public class ShuXueFunction {
public ShuXueFunction() {
}
public void fun(int num)throws Exception{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
for(int i=0;i<num;i++){
String str = br.readLine();
if (str == null) {
System.out.println("null");
} else {
Float.parseFloat(str);
}
}
}
public static void main(String[] args) throws Exception{
new ShuXueFunction().fun(5);
}
}