/*
* Output:
Symbol: $
Default fractional digits: 2
*/
import java.util.Currency;
import java.util.Locale;
public class MainClass {
public static void main(String args[]) {
Currency c;
c = Currency.getInstance(Locale.US);
System.out.println("Symbol: " + c.getSymbol());
System.out.println("Default fractional digits: "
+ c.getDefaultFractionDigits());
}
}
/**
*Output:
stack: []
push(2)
stack: [2]
push(6)
stack: [2, 6]
push(9)
stack: [2, 6, 9]
pop -> 9
stack: [2, 6]
pop -> 6
stack: [2]
*/
import java.util.EmptyStackException;
import java.util.Stack;
public class MainClass {
static void showpush(Stack<Integer> st, int a) {
st.push(a);
System.out.println("push(" + a + ")");
System.out.println("stack: " + st);
}
static void showpop(Stack<Integer> st) {
System.out.print("pop -> ");
Integer a = st.pop();
System.out.println(a);
System.out.println("stack: " + st);
}
public static void main(String args[]) {
Stack<Integer> st = new Stack<Integer>();
System.out.println("stack: " + st);
showpush(st, 2);
showpush(st, 6);
showpush(st, 9);
showpop(st);
try {
showpop(st);
} catch (EmptyStackException e) {
System.out.println("empty stack");
}
}
}
/*
String: string
boolean: true
boolean: false
int: 1
int: 2
int: 3
double: 4.12
*/
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class MainClass {
public static void main(String args[]) throws IOException {
int i;
double d;
boolean b;
String str;
FileWriter fout = new FileWriter("test.txt");
fout.write("string true false 1 2 3 4.12");
fout.close();
FileReader fin = new FileReader("Test.txt");
Scanner src = new Scanner(fin);
while (src.hasNext()) {
if (src.hasNextInt()) {
i = src.nextInt();
System.out.println("int: " + i);
} else if (src.hasNextDouble()) {
d = src.nextDouble();
System.out.println("double: " + d);
} else if (src.hasNextBoolean()) {
b = src.nextBoolean();
System.out.println("boolean: " + b);
} else {
str = src.next();
System.out.println("String: " + str);
}
}
fin.close();
}
}
/*
* Output:
Initial pattern in bits1:
{0, 2, 4, 6, 8, 10, 12, 14}
Initial pattern in bits2:
{1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14}
bits2 AND bits1:
{2, 4, 6, 8, 12, 14}
bits2 OR bits1:
{0, 2, 4, 6, 8, 10, 12, 14}
bits2 XOR bits1:
{}
*/
import java.util.BitSet;
public class MainClass {
public static void main(String args[]) {
BitSet bits1 = new BitSet(16);
BitSet bits2 = new BitSet(16);
// set some bits
for (int i = 0; i < 16; i++) {
if ((i % 2) == 0)
bits1.set(i);
if ((i % 5) != 0)
bits2.set(i);
}
System.out.println("Initial pattern in bits1: ");
System.out.println(bits1);
System.out.println("\nInitial pattern in bits2: ");
System.out.println(bits2);
// AND bits
bits2.and(bits1);
System.out.println("\nbits2 AND bits1: ");
System.out.println(bits2);
// OR bits
bits2.or(bits1);
System.out.println("\nbits2 OR bits1: ");
System.out.println(bits2);
// XOR bits
bits2.xor(bits1);
System.out.println("\nbits2 XOR bits1: ");
System.out.println(bits2);
}
}
/**
*Output:
THURSDAY
*/
import java.util.Calendar;
import java.util.Date;
public class MainClass {
public static void main(String args[]) {
Calendar cal = Calendar.getInstance();
Date now = new Date();
cal.setTime(now);
int dayofweek = cal.get(Calendar.DAY_OF_WEEK);
if (dayofweek == Calendar.SUNDAY)
System.out.println("SUNDAY");
if (dayofweek == Calendar.MONDAY)
System.out.println("MONDAY");
if (dayofweek == Calendar.TUESDAY)
System.out.println("TUESDAY");
if (dayofweek == Calendar.WEDNESDAY)
System.out.println("WEDNESDAY");
if (dayofweek == Calendar.THURSDAY)
System.out.println("THURSDAY");
if (dayofweek == Calendar.FRIDAY)
System.out.println("FRIDAY");
if (dayofweek == Calendar.SATURDAY) {
System.out.println("SATURDAY");
}
}
}
