public class BooleanExam {
public static void main(String[] args) {
Boolean a = new Boolean(true);
Boolean b = new Boolean(false);
boolean aBool = a.booleanValue();
boolean bBool = b.booleanValue();
System.out.println(aBool);
System.out.println(bBool);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
Boolean x = new Boolean(true);
Boolean y = new Boolean(false);
Boolean x2 = new Boolean(true);
Boolean y2 = new Boolean(true);
int aBool = Boolean.compare(x, y);
int bBool = Boolean.compare(x2, y2);
System.out.println(aBool);
System.out.println(bBool);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
Boolean x = new Boolean(true);
Boolean y = new Boolean(false);
int a = x.compareTo(y);
String str1 = "Both values are equal ";
String str2 = "Object value is true";
String str3 = "Argument value is true";
if (a == 0) {
System.out.println(str1);
} else if (a > 0) {
System.out.println(str2);
} else if (a < 0) {
System.out.println(str3);
}
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
Boolean x = new Boolean(true);
Boolean y = new Boolean(false);
boolean a = x.equals(y);
System.out.println(a);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
boolean bool1, bool2;
System.setProperty("demo1", "true");
System.setProperty("demo2", "abcd");
String s1 = System.getProperty("demo1");
String s2 = System.getProperty("demo2");
bool1 = Boolean.getBoolean("demo1");
bool2 = Boolean.getBoolean("demo2");
String str1 = "boolean value of system property demo1 is " + bool1;
String str2 = "System property value of demo1 is " + s1;
String str3 = "boolean value of system property demo2 is " + bool2;
String str4 = "System property value of demo2 is " + s2;
System.out.println(str1);
System.out.println(str2);
System.out.println(str3);
System.out.println(str4);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
Boolean x = new Boolean(true);
Boolean y = new Boolean(false);
int i1, i2;
i1 = x.hashCode();
i2 = y.hashCode();
String str1 = "Hash code of " + x + " is " + i1;
String str2 = "Hash code of " + y + " is " + i2;
// print i1, i2 values
System.out.println(str1);
System.out.println(str2);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
// create and assign values to String's s1, s2
String s1 = "TRue";
String s2 = "yes";
// create 2 boolean primitives bool1, bool2
boolean bool1, bool2;
bool1 = Boolean.parseBoolean(s1);
bool2 = Boolean.parseBoolean(s2);
String str1 = "Parse boolean on " + s1 + " gives " + bool1;
String str2 = "Parse boolean on " + s2 + " gives " + bool2;
// print b1, b2 values
System.out.println(str1);
System.out.println(str2);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
Boolean b1 = new Boolean(true);
Boolean b2 = new Boolean(null);
String s1 = b1.toString();
String s2 = b2.toString();
String str1 = "String value of boolean object " + b1 + " is " + s1;
String str2 = "String value of boolean object " + b2 + " is " + s2;
// print s1, s2 values
System.out.println(str1);
System.out.println(str2);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
boolean bool1 = true;
boolean bool2 = false;
Boolean b1 = Boolean.valueOf(bool1);
Boolean b2 = Boolean.valueOf(bool2);
// print b1, b2 values
System.out.println(b1);
System.out.println(b2);
}
}
yengo หรือ buzzcity
public class BooleanExam {
public static void main(String[] args) {
String s1 = null;
String s2 = "false";
Boolean b1 = Boolean.valueOf(s1);
Boolean b2 = Boolean.valueOf(s2);
// print b1, b2 values
System.out.println(b1);
System.out.println(b2);
}
}
yengo หรือ buzzcity
package exam.poi;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet();
HSSFSheet sheet2 = workbook.createSheet();
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity
package exam.poi;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet("sheetname 1");
HSSFSheet sheet2 = workbook.createSheet("sheetname 2");
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet("sheetname 1");
HSSFSheet sheet2 = workbook.createSheet("sheetname 2");
System.out.println("number of Sheet : " + workbook.getNumberOfSheets());
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS" + workbook.getNumberOfSheets());
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet("sheetname 1");
HSSFSheet sheet2 = workbook.createSheet("sheetname 2");
HSSFSheet sheet = workbook.getSheetAt(0);
System.out.println("sheet 0 name : " + sheet.getSheetName());
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet("sheetname 1");
HSSFSheet sheet2 = workbook.createSheet("sheetname 2");
int sheetindex1 = workbook.getSheetIndex(sheet1);
int sheetindex2 = workbook.getSheetIndex(sheet2);
System.out.println("sheet1 is index : " + sheetindex1);
System.out.println("sheet1 is index : " + sheetindex2);
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet("sheetname 1");
HSSFSheet sheet2 = workbook.createSheet("sheetname 2");
int sheetindex1 = workbook.getSheetIndex("sheetname 1");
int sheetindex2 = workbook.getSheetIndex("sheetname 3");
System.out.println("sheet1 is index : " + sheetindex1);
System.out.println("sheet1 is index : " + sheetindex2);
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class PoiExam {
public static void main(String[] args) {
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet1 = workbook.createSheet("sheetname 1");
HSSFSheet sheet2 = workbook.createSheet("sheetname 2");
System.out.println("sheet1 is name : " + workbook.getSheetName(0));
System.out.println("sheet2 is name : " + workbook.getSheetName(1));
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File("PoiExam.xls"));
workbook.write(fos);
System.out.println("SUCCESS");
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
yengo หรือ buzzcity