-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathLeggi.java
More file actions
183 lines (92 loc) · 2.75 KB
/
Leggi.java
File metadata and controls
183 lines (92 loc) · 2.75 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
import java.io.*;
class Leggi {
private static BufferedReader br =
new BufferedReader(new InputStreamReader(System.in));
private static String s;
public static boolean unBoolean() {
input();
if (s != null && !s.equals("true")
&& !s.equals("false"))
System.err.println("Errore: "+s+" non e' un boolean");
return s!=null && s.equals("true");
}
public static byte unByte() {
try {
return Byte.parseByte(input());
} catch (NumberFormatException e) {
if (s!=null) System.err.println("Errore: "+s+" non e' un byte");
return 0;
}
}
public static short unoShort() {
try {
return Short.parseShort(input());
} catch (NumberFormatException e) {
if (s!=null) System.err.println("Errore: "+s+" non e' uno short");
return 0;
}
}
public static int unInt() {
try {
return Integer.parseInt(input());
} catch (NumberFormatException e) {
if (s!=null) System.err.println("Errore: "+s+" non e' un int");
return 0;
}
}
public static long unLong() {
try {
return Long.parseLong(input());
} catch (NumberFormatException e) {
if (s!=null) System.err.println("Errore: "+s+" non e' un long");
return 0;
}
}
public static float unFloat() {
try {
return Float.parseFloat(input());
} catch (NumberFormatException e) {
if (s!=null) System.err.println("Errore: "+s+" non e' un float");
} catch (NullPointerException e) {}
return 0;
}
public static double unDouble() {
try {
return Double.parseDouble(input());
} catch (NumberFormatException e) {
if (s!=null) System.err.println("Errore: "+s+" non e' un double");
} catch (NullPointerException e) {}
return 0;
}
public static char unChar() {
try {
return input().charAt(0);
} catch (IndexOutOfBoundsException e) {
// non dovrebbe mai accadere
// se non quando c'e' un IOException
} catch (NullPointerException e) {}
return ' ';
}
public static String unoString() {
try {
return br.readLine();
} catch (IOException e) {
System.err.println("Errore durante la lettura dell'input!");
return null;
}
}
private static String input() {
try {
s = br.readLine().trim()+" ";
s = s.substring(0,s.indexOf(" "));
if (s.length() < 1) {
System.err.println("Errore: inserire almeno un carattere o uno spazio");
s = null;
}
} catch (IOException e) {
System.err.println("Errore durante la lettura dell'input!");
return null;
}
return s;
}
}