Example usage for java.lang Double Double

Introduction

In this page you can find the example usage for java.lang Double Double.

Prototype

@Deprecated(since = "9")
public Double(String s) throws NumberFormatException

Source Link

Document

Constructs a newly allocated Double object that represents the floating-point value of type double represented by the string.

Usage

From source file:Main.java

public static void main(String[] args) {
    double d = Math.sqrt(-10);
    boolean b1 = Double.isNaN(d);

    System.out.println(b1);/*from w  ww  .ja  va2s. c  o m*/

    Double dObj = new Double(d);
    boolean b2 = dObj.isNaN();
    System.out.println(b2);

}

From source file:Main.java

public static void main(String[] args) {

    // get a number as float
    Number x = new Float(123456f);

    // get a number as double
    Number y = new Double(9876);

    // print their value as int
    System.out.println("x as float:" + x + ", x as Integer:" + x.intValue());
    System.out.println("y as double:" + y + ", y as Integer:" + y.intValue());

}

From source file:Main.java

public static void main(String[] args) {

    // get a number as float
    Number x = new Float(123456f);

    // get a number as double
    Number y = new Double(9876);

    // print their value as short
    System.out.println("x as float :" + x + ", x as short:" + x.shortValue());
    System.out.println("y as double:" + y + ", y as short:" + y.shortValue());

}

From source file:Main.java

public static void main(String[] args) {

    // get a number as float
    Number x = new Float(123456f);

    // get a number as double
    Number y = new Double(9876);

    // print their value as long
    System.out.println("x as float:" + x + ", x as long:" + x.longValue());
    System.out.println("y as double:" + y + ", y as long:" + y.longValue());

}

From source file:Main.java

public static void main(String[] args) {
    double d = (double) 4 / 0;
    boolean b1 = Double.isInfinite(d);
    System.out.println(b1);/*from  ww w  .  jav a2 s . c o m*/

    Double dObj = new Double(d);
    boolean b2 = dObj.isInfinite();
    System.out.println(b2);

}

From source file:Main.java

public static void main(String[] args) {

    // get a number as integer
    Number x = new Integer(123456);

    // get a number as double
    Number y = new Double(9876);

    // print their value as float
    System.out.println("x as integer:" + x + ", x as float:" + x.floatValue());
    System.out.println("y as double:" + y + ", y as float:" + y.floatValue());

}

From source file:MyClass.java

public static void main(String args[]) {
    MyClass raw = new MyClass(new Double(98.6));
    double d = (Double) raw.getob();
    System.out.println("value: " + d);
}

From source file:TreeMapDemo.java

public static void main(String args[]) {
    TreeMap<String, Double> tm = new TreeMap<String, Double>();

    tm.put("A", new Double(3.34));
    tm.put("B", new Double(1.22));
    tm.put("C", new Double(1.00));
    tm.put("D", new Double(9.22));
    tm.put("E", new Double(-1.08));

    Set<Map.Entry<String, Double>> set = tm.entrySet();

    for (Map.Entry<String, Double> me : set) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }//  w ww.ja va  2 s .  c  o  m

    double balance = tm.get("A");
    tm.put("B", balance + 1000);

    System.out.println(tm.get("A"));
}

From source file:HashMapDemo.java

public static void main(String args[]) {

    HashMap<String, Double> hm = new HashMap<String, Double>();

    hm.put("A", new Double(3.34));
    hm.put("B", new Double(1.22));
    hm.put("C", new Double(1.00));
    hm.put("D", new Double(9.22));
    hm.put("E", new Double(-19.08));

    Set<Map.Entry<String, Double>> set = hm.entrySet();

    for (Map.Entry<String, Double> me : set) {
        System.out.print(me.getKey() + ": ");
        System.out.println(me.getValue());
    }/* w ww  .  ja  v  a  2s . c o  m*/

    double balance = hm.get("A");
    hm.put("A", balance + 1000);

    System.out.println(hm.get("A"));
}

From source file:MainClass.java

public static void main(String args[]) {

    Vector v = new Vector();

    for (int i = 0; i < 5; i++) {
        v.addElement(new Double(5));
    }/*  w w  w  .ja  va 2  s.c o  m*/

    for (int i = v.size() - 1; i >= 0; i--) {
        System.out.print(v.elementAt(i) + " ");
    }
}