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K227 Java 2
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Java 7
class Sample1 { public static void main (String args[]) { System.out.println( Java! ); } } 8
> javac Sample1.java 9
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> java Sample1 Java 11
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http://java.sun.com/j2se/1.5.0/ja/download.html C: Program Files Java jdk1.5.0_06 bin; http://www.smg.co.jp/seminar/java/ 14
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// class Sample1 { public static void main (String args[]) { System.out.println( Java! ); System.out.println( Java ); } } 16
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100 is the value of num. 20
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A 22
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byte -2 7 +2 7-1 short -2 15 +2 15-1 int -2 31 +2 31-1 long -2 63 +2 63-1 float double char boolean true or false 24
int number; char c; double f1, f2; 25
number = 10; c = ; f1 = 1.41; f2 = number*f1; 26
int number = 10; char c = ; double f1 = 1.41, f2 = 2.4; 27
int number = 10; System.out.println(number); 28
int number = 10; System.out.println(number); number = 30; System.out.println(number); double f1 = 3.14, f2=0.9; f2 = f1; System.out.println(f2); 29
int num = 10; double d = num; System.out.println(num); System.out.println(d); 10 10.0 30
double pi = 3.14; int num = (int) pi; System.out.println(pi); System.out.println(num); 3.14 3 31
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3 35
a = b a = a b 36
int d = 2; double pi = 3.14; System.out.println(d*pi); 6.28 37
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public class rensyu2 { public static void main(string args[]) { System.out.println(5/2*3); System.out.println(5/2*3.0); System.out.println(5.0/2*3); System.out.println(5/2.0*3); } } 39
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i i i i i 41
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import java.io.*; public class { public static void main(string args[]) throws IOException {... BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str = br.readline(); } System.out.println(str + ); } 44
What is your name? Hideaki Your name is Hideaki. 45
import java.io.*; public class { } public static void main(string args[]) throws IOException {... BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str = br.readline(); int num =Integer.parseInt(str); System.out.println(num + ); } 46
int num = Interger.parseInt(str); double num = Double.parseDouble(str); 47
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import java.io.*; class test1 { public static void main(string args[]) throws IOException {... BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str1 = br.readline(); String str2 = br.readline(); } System.out.println( +str1+ ); System.out.println( +str2+ ); } 49
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60 < 60 true false 54
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==!= 56
if if { ; 2;... } 57
if { ; } else { ; } if { ;... } else { ;... } 58
if { ;... } else if { ;... }... else { ; } 59
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&& 61
{ case : break; case break; default: break; } 62
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... } 65
} } } 66
...... } 67
{ ;... } 68
for while for while 69
for while for } while } 70
... ; } 71
while do while 72
while } do while } 73
} 74
} 75
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A A 77
A 78
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ten[0] ten[1] ten[2] ten[3] ten 81
90 80 70 60 ten[0] ten[1] ten[2] ten[3] ten 82
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int int int ten[]; or int [] ten; int i, j, k; ten = new int[3]; ten[0] = 90; ten[1] = 80; ten[2] = 70; System.out.println(ten[0]); System.out.println(ten[1]); System.out.println(ten[2]); i = 90; j = 80; k = 70; System.out.println(i); System.out.println(j); System.out.println(k); 85
ten[0][0] ten[0][1] ten[0][2] ten[1][0] ten[1][1] ten[1][2] ten[2][0] ten[2][1] ten[2][2] 86
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ten[0][0] ten[1][0] ten[2][0] ten[0][1] ten[1][1] ten[2][1] 89
ten[0][0] ten[1][0] ten[2][0] ten[0][1] ten[0][2] ten[1][1] 90
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......... 96
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......... 100
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... 104
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......... 111
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......... 123
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#1 137
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Vehicle Car Plane 139
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Vehicle Car Plane 141
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ivehicle imaterial Car 151
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