What is the output of following.

public static void main(String[]  args) {
    System.out.println("c="+args.length());
}

What is the output of following.

public static void main(String[]  args) {
    String s1="sanjay";
    String s2="sanjay";             
    System.out.println("c="+s1==s2);
}

What is the output of following.

public static void main(String[]  args) {
    String s1="prasad";
    String s2="Ram";
    s1.concat(s2);
    System.out.println("c="+s1);
}

What is the output of following.

public static void main(String[]  args) {
    final int b=3;
    byte c=b/2;
    System.out.println("c="+c);
}

Is String class final?

String s = "India";String s2 = s;s.concat (” is a nation.”);System.out.println(s);

Which of the following class among these are synchronized?

Please dont Try this Question... Try Next One.... If you attend others, you will get to know the answer of this question. Questions: 1. 1. public class Question { Public static void main(String args[]) { int i=10; System.out.println("i="+++i); } 2. public class Question { public static void main(String args[]) { int x=010; System.out.print("X="+x); } } 3. public class Question { public static void main(String args[]) { int x=y=10; y=12; System.out.print(x+"&"+y); } } 4. public class Question{ public static void main(String args[]) { int i=3,j=2; System.out.print("i|j="+ (i|j)); } } 5. public class Question { public static void main(String args[]) { int x=0x10; System.out.print("X="+x); } } Answers: 1. System.out.println("i="+++i); Must be as a System.out.println("i="+ ++i); “Space between operators” 2. int x=010; In this statement, compile will take it as a OCTAL NUMBER. So OCTAL(10)=DECIMAL(8) 3. int x=y=10; In this statement, We are using y without declaring it. So will cause Compile Time Error. 4. 3 ? 1 1 2 ? 1 0 ------------------ (OR) 3 ? 1 1 5. int x=0x10; In the above statement, Compile will take it as a HEXA DECIMAL. So. HEXA(10) ? DECIMAL(16)

public class Question { public static void main(String args[]) { int x=0x10; System.out.print("X="+x); } }

public class e { public static void main(String args[]) { int i=3,j=2; System.out.print("i|j="+ (i|j)); } }

public class Question { public static void main(String args[]) { int x=y=10; y=12; System.out.print(x+"&"+y); } }

public class Question { public static void main(String args[]) { int x=010; System.out.print("X="+x); } }

1. public class Question { public static void main(String args[]) { int i=10; System.out.println("i="+++i); }

What is the output for the below code ? public class A { public A() { System.out.println("A"); } } public class B extends A implements Serializable { public B() { System.out.println("B"); } } public class Test { public static void main(String... args) throws Exception { B b = new B(); ObjectOutputStream save = new ObjectOutputStream(new FileOutputStream("datafile")); save.writeObject(b); save.flush(); ObjectInputStream restore = new ObjectInputStream(new FileInputStream("datafile")); B z = (B) restore.readObject(); } }

What is the output for the below code ?import java.util.regex.Matcher;import java.util.regex.Pattern;public class Test { public static void main(String... args) { Pattern p = Pattern.compile("a*b"); Matcher m = p.matcher("b"); boolean b = m.matches(); System.out.println(b); }}

What is the output for the below code ? public class B { public String getCountryName(){ return "USA"; } public StringBuffer getCountryName(){ StringBuffer sb = new StringBuffer(); sb.append("UK"); return sb; } public static void main(String[] args){ B b = new B(); System.out.println(b.getCountryName().toString()); } }

What is the output for the below code ? class A implements Runnable{ public void run(){ System.out.println(Thread.currentThread().getName()); } } public class Test { public static void main(String... args) { A a = new A(); Thread t = new Thread(a); Thread t1 = new Thread(a); t.setName("t"); t1.setName("t1"); t.setPriority(10); t1.setPriority(-3); t.start(); t1.start(); } }

class c1 { public void m1() { System.out.println("m1 method in C1 class"); } } class c2 { public c1 m1() { return new c1(){ public void m1() { System.out.println("m1 mehod in anonymous class"); }};} public static void main(String a[]) { c1 ob1 =new c2().m1(); ob1.m1(); }}

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