String in Java - Quiz | Instant Results

Q: What could be the output of the following fragment of code?

public class Test{
        public static void main(String args[]){ 
		String x = "hellow";
		int y = 9;
		System.out.println(x += y);
        } 
}

A. Throws an exception as string and int are not compatible for addition
B. hellow9
C. 9hellow
D. Compilation error

Correct Option: B
Remarks:

Explanation: hellow9

Q: Determine output:

public class Test{
        public static void main(String args[]){ 	
		String s1 = "SITHA";
		String s2 = "RAMA";
		System.out.println(s1.charAt(0) > s2.charAt(0));
        }
}

A. true
B. false
C. 0
D. Compilation error

Correct Option: A
Remarks:

Explanation: true

Q: What will be the output of the following program code?

class LogicalCompare{
        public static void main(String args[]){
                String str1 = new String("OKAY");
                String str2 = new String(str1);
                System.out.println(str1 == str2);
        }
}

A. true
B. false
D. 1

Correct Option: B
Remarks:

Explanation: false

Q: What is the output of the following println statement?

String str1 = "Hellow";
System.out.println(str1.indexOf('t'));

A. true
B. false
C. 1
D. -1

Correct Option: D
Remarks:

Explanation: -1

Q: What will be the output of the following program?

public class Test{
        public static void main(String args[]){
		String str1 = "one";
		String str2 = "two";
		System.out.println(str1.concat(str2));
        }
}

A. one
B. two
C. onetwo
D. twoone

Correct Option: C
Remarks:

Explanation: onetwo

Q: How many Constructor String class have?

A. 2
B. 7
C. 13
D. None of this

Correct Option: C
Remarks:

Explanation: 13

Q: How many objects will be created?

String a = new String("Atnylagk");
String b = new String("Atnylagk");
String c = "Atnylagk";
String d = "Atnylagk";

A. 4
B. 3
C. 2
D. None of this

Correct Option: C
Remarks:

Explanation: 3

Q: The class string belongs to ................. package.

A. java.awt
B. java.lang
C. java.applet
D. java.string

Correct Option: B
Remarks:

Explanation: java.lang

Q:

String str1 = "Kolkata".replace('k', 'a');

In the above statement, the effect on string Kolkata is

A. The first occurrence of k is replaced by a.
B. All characters k are replaced by a.
C. All characters a are replaced by k.
D. Displays error message

Correct Option: B
Remarks:

Explanation: All characters k are replaced by a.

Q: What will be the output?

1. public class Test{
2.      public static void main(String args[]){
3.            Object myObj = new String[]{"one", "two", "three"};
4.            {
5.	          for(String s : (String[])myObj) 
6.		        System.out.print(s + ".");
7.	    }
8.      }
9. }

A. one.two.three.
B. Compilation fails because of an error at line 3
C. Compilation fails because of an error at line 5
D. An exception is thrown at runtime.

Correct Option: A
Remarks:

Explanation: one.two.three.

String in Java - Quiz

What could be the output of the following fragment of code?
public class Test{ public static void main(String args[]){ String x = "hellow"; int y = 9; System.out.println(x += y); } }

Determine output:
public class Test{ public static void main(String args[]){ String s1 = "SITHA"; String s2 = "RAMA"; System.out.println(s1.charAt(0) > s2.charAt(0)); } }

What will be the output of the following program code?
class LogicalCompare{ public static void main(String args[]){ String str1 = new String("OKAY"); String str2 = new String(str1); System.out.println(str1 == str2); } }

What is the output of the following println statement?
String str1 = "Hellow"; System.out.println(str1.indexOf('t'));

What will be the output of the following program?
public class Test{ public static void main(String args[]){ String str1 = "one"; String str2 = "two"; System.out.println(str1.concat(str2)); } }

How many Constructor String class have?

How many objects will be created?
String a = new String("Atnylagk"); String b = new String("Atnylagk"); String c = "Atnylagk"; String d = "Atnylagk";

The class string belongs to ................. package.

String str1 = "Kolkata".replace('k', 'a');
In the above statement, the effect on string Kolkata is

What will be the output?
1. public class Test{ 2. public static void main(String args[]){ 3. Object myObj = new String[]{"one", "two", "three"}; 4. { 5. for(String s : (String[])myObj) 6. System.out.print(s + "."); 7. } 8. } 9. }

String in Java - Quiz

What could be the output of the following fragment of code? public class Test{ public static void main(String args[]){ String x = "hellow"; int y = 9; System.out.println(x += y); } }

Determine output: public class Test{ public static void main(String args[]){ String s1 = "SITHA"; String s2 = "RAMA"; System.out.println(s1.charAt(0) > s2.charAt(0)); } }

What will be the output of the following program code? class LogicalCompare{ public static void main(String args[]){ String str1 = new String("OKAY"); String str2 = new String(str1); System.out.println(str1 == str2); } }

What is the output of the following println statement? String str1 = "Hellow"; System.out.println(str1.indexOf('t'));

What will be the output of the following program? public class Test{ public static void main(String args[]){ String str1 = "one"; String str2 = "two"; System.out.println(str1.concat(str2)); } }

How many Constructor String class have?

How many objects will be created? String a = new String("Atnylagk"); String b = new String("Atnylagk"); String c = "Atnylagk"; String d = "Atnylagk";

The class string belongs to ................. package.

String str1 = "Kolkata".replace('k', 'a'); In the above statement, the effect on string Kolkata is

What will be the output? 1. public class Test{ 2. public static void main(String args[]){ 3. Object myObj = new String[]{"one", "two", "three"}; 4. { 5. for(String s : (String[])myObj) 6. System.out.print(s + "."); 7. } 8. } 9. }

What could be the output of the following fragment of code?
public class Test{ public static void main(String args[]){ String x = "hellow"; int y = 9; System.out.println(x += y); } }

Determine output:
public class Test{ public static void main(String args[]){ String s1 = "SITHA"; String s2 = "RAMA"; System.out.println(s1.charAt(0) > s2.charAt(0)); } }

What will be the output of the following program code?
class LogicalCompare{ public static void main(String args[]){ String str1 = new String("OKAY"); String str2 = new String(str1); System.out.println(str1 == str2); } }

What is the output of the following println statement?
String str1 = "Hellow"; System.out.println(str1.indexOf('t'));

What will be the output of the following program?
public class Test{ public static void main(String args[]){ String str1 = "one"; String str2 = "two"; System.out.println(str1.concat(str2)); } }

How many objects will be created?
String a = new String("Atnylagk"); String b = new String("Atnylagk"); String c = "Atnylagk"; String d = "Atnylagk";

String str1 = "Kolkata".replace('k', 'a');
In the above statement, the effect on string Kolkata is

What will be the output?
1. public class Test{ 2. public static void main(String args[]){ 3. Object myObj = new String[]{"one", "two", "three"}; 4. { 5. for(String s : (String[])myObj) 6. System.out.print(s + "."); 7. } 8. } 9. }