Example usage for java.lang String String

Introduction

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

Prototype

public String() 

Source Link

Document

Initializes a newly created String object so that it represents an empty character sequence.

Usage

From source file:Main.java

public static void main(String args[]) {
    String s1 = new String();
    System.out.println("String from java2s.com is" + s1);

}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Object o = new String();
    Class sup = o.getClass().getSuperclass(); // java.lang.Object

}

---

From source file:Main.java

public static void main(String[] args) {
    String str1 = new String();
    String str2 = new String("Hello");

    // Get the length of str1 and str2 
    int len1 = str1.length();
    int len2 = str2.length();

    // Display the length of str1 and str2
    System.out.println("Length of  \"" + str1 + "\" = " + len1);
    System.out.println("Length of  \"" + str2 + "\" = " + len2);
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Object object = new String();

    Class cls = java.lang.String.class;
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Object object = new String();
    // By way of an object
    Class cls = object.getClass();

}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Object object = new String();

    try {/*from   w  w w. jav a 2  s. com*/
        Class cls = Class.forName("java.lang.String");
    } catch (ClassNotFoundException e) {
    }
}

---

From source file:LengthOf.java

public static void main(String[] argv) {
    int ints[] = new int[3];
    Object objs[] = new Object[7];

    String stra = "Hello World";
    String strb = new String();

    // Length of any array - use its length attribute
    System.out.println("Length of argv is " + argv.length);
    System.out.println("Length of ints is " + ints.length);
    System.out.println("Length of objs is " + objs.length);

    // Length of any string - call its length() method.
    System.out.println("Length of stra is " + stra.length());
    System.out.println("Length of strb is " + strb.length());
}

---

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    // 1. Reading input by lines:
    BufferedReader in = new BufferedReader(new FileReader("IOStreamDemo.java"));
    String s, s2 = new String();
    while ((s = in.readLine()) != null)
        s2 += s + "\n";
    in.close();/*  w w w  .  j a  va  2 s  .c om*/

}

---

From source file:ObjectUtilsTrial.java

public static void main(String[] args) {
    // Create ObjectUtilsTrial instance
    String one = new String();
    String two = one; // Same Reference
    String three = new String(); // New Object
    String four = null;/*from www .  ja v  a 2 s .  c o  m*/

    // four is null, returns DEFAULT
    System.out.print("1) If null return DEFAULT >>>");
    System.out.println(ObjectUtils.defaultIfNull(four, "DEFAULT"));

    // one and two point to the same object
    System.out.print("2) References to the same object >>>");
    System.out.println(ObjectUtils.equals(one, two));

    // one and three are different objects
    System.out.print("3) Check object references and not values >>>");
    System.out.println(ObjectUtils.equals(one, three));

    // toString method gets called
    System.out.print("4) toSring gets invoked >>>");
    System.out.println(one);

    // Object details displayed..toString is not called
    System.out.print("5) Display object details >>>");
    System.out.println(ObjectUtils.identityToString(one));

    // Pass null get empty string
    System.out.print("6) Pass null and get back an Empty string >>>");
    System.out.println("**" + ObjectUtils.toString(null) + "**");
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    System.out.println(stdin.readLine());
    BufferedReader in = new BufferedReader(new FileReader("Main.java"));
    String s, s2 = new String();
    while ((s = in.readLine()) != null)
        s2 += s + "\n";
    in.close();/* w  ww  . j a  va2  s. c  o m*/
    StringReader in1 = new StringReader(s2);
    int c;
    while ((c = in1.read()) != -1)
        System.out.print((char) c);
    BufferedReader in2 = new BufferedReader(new StringReader(s2));
    PrintWriter out1 = new PrintWriter(new BufferedWriter(new FileWriter("IODemo.out")));
    int lineCount = 1;
    while ((s = in2.readLine()) != null)
        out1.println(lineCount++ + ": " + s);
    out1.close();
}

---

• «
• 1
• 2
• 3
• 4
• »