Explore topic-wise MCQs in General Awareness.

 static void Main(string[] args) { double a = 345.09; byte c = (byte) a; Console.WriteLine(c); Console.ReadLine(); }  

int[] a= {11, 3, 5, 9, 6};


  class Program { static void Main(string[] args) { String c = "i love Csharp"; bool a; a = c.StartsWith("I"); Console.WriteLine(a); Console.ReadLine(); } }  

 class sum { public int x; private int y; public void math(int a, int b) { x = a * 4; y = b; } } class Program { static void Main(string[] args) { sum p = new sum(); p.math(12, 30); Console.WriteLine(p.x + " " + p.y); Console.ReadLine(); } }  

 class math { public int a,b; public math(int i, int j) { a = i; b = j; } public void sum(math m) { m.a *= 2; m.b += 2; } } class Program { static void Main(string[] args) { math t = new math(20, 10); t.sum(t); Console.WriteLine(t.a + " " + t.b); Console.ReadLine(); } }  

 static void Main(string[] args) { int a = 10, b = 20; method(ref a, ref b); console.writeline(a + " " + b); } static void swap(ref int i, ref int j) { int t; t = i; i = j; j = t; }  

 static void Main(string[] args) { String c = "Hello"; String a = c + "Bye"; Console.WriteLine(a); Console.ReadLine(); }  

 static void main(string[] args) { int []arr = new int[]{ 1, 2, 3, 4, 5}; fun (ref arr); for (int i = 0; i < arr.Length ; i++) Console.WriteLine( arr[i] + " "); } static void fun(ref int[]a) { a = new int[6]; a[3] = 32; a[1] = 24; }  

 static void Main(string[] args) { String c = "Hello"; String a ; a = c.Replace('l', 'w'); Console.WriteLine(a); Console.ReadLine(); }  

 static void Main(string[] args) { String c = "Hello i love you"; String a ; a = c.Substring(12, 3); Console.WriteLine(a); Console.ReadLine(); }  

 a) : String a = "She sold her beauty in one night to someone else"; int i; i = a.SecondIndexOf("s"); b) : String a = "She sold her beauty in one night to someone else"; int i, j; i = a.FirstIndexOf("s"); j = a.IndexOf("s", i + 1); c) : String a = "She sold her beauty in one night to someone else"; int i, j; i = a.IndexOf("s"); j = a.IndexOf("s", i + 1);  

 static void main(string[] args) { int i; int res = fun (out i); console.writeline(res); console.readline(); } static int fun(out int i) { int s = 1; i = 7; for (int j = 1; j <= i; j++ ) s = s * j; return s; }  

 static void Main(string[] args) { int a = 5; int b = 0, c = 0; method (a, ref b, ref c); Console.WriteLine(b + " " + c); Console.ReadLine(); } static int method(int x, int p, ref int k) { p = x + x * x; k = x * x + p; return 0; }  

 static Void main(string[] args) { int a = 5; int b = 6; float c = 7.2f; math (ref a, ref b, ref c); Console.WriteLine(a + " " + b + " " + c); } static int math(/*add parameter decelaration */) { a += b; b *= (int)c; c += a * b; return 0; }  

 static void Main(string[] args) { object[] a = {" 1 ", 4.0f, " harsh "}; fun(a); Console.ReadLine(); } static void fun(params object[] b) { for (int i = 0; i < b.Length - 1; i++) Console.WriteLine(b[i] + " "); }  

 static void Main(string[] args) { int [] a = {1, 2, 3, 4, 5}; fun(a); Console.ReadLine(); } static void fun(params int[] b ) { for (int i = 0; i < b.Length; i++) { b[i] = b[i] * 5 ; Console.WriteLine(b[i] + ""); } }  

 static void Main(string[] args) { int [] a = {1, 2, 3, 4, 5}; fun(a); Console.ReadLine(); } static void fun(params int[] b ) { int[] k = { 3, 4, 7, 8,' 0' }; for (int i = 0; i < b.Length; i++) { b[i] = b[i] + k[i] ; Console.WriteLine( b[i] + " "); } }  

 static void Main(string[] args) { int[] a = { 2, 21, 34, 46, 85, 88, 90}; fun(a); Console.WriteLine(a + " "); Console.ReadLine(); } static void fun(params int [] b ) { int [] c = { 1, 2, 3, 4, 5, 6, 7}; int i ; for (i = 0 ;i < b.Length ;i++) if (b[i] % 2 == 0) { c[i] = b[i]; } Console.WriteLine("even numbers are:"); for (i = 0 ;i <= b.Length ;i++) { Console.WriteLine(c[i]); } }  

 static void Main(string[] args) { int[] x = { 80, 82, 65, 72, 83, 67 }; fun(x); Console.ReadLine(); } static void fun(params int [] b ) { int i; for (i = 5; i >=0 ; i--) { Console.WriteLine(Convert.ToChar(b[i])); } }  

 static void Main(string[] args) { int[] x = {65, 66, 67, 68, 69, 70}; fun(x); Console.ReadLine(); } static void fun(params int[] b ) { int i; for (i = 5; i > 0 ; i--) { b[i] = b[i] + 32; Console.WriteLine(Convert.ToChar(b[i])); } }  

 static void main(String args[]) { char chars[] = {'x', 'y', 'z'}; String s = new String(chars); Console.WriteLine(s); }  

 static void Main(string[] args) { StringBuilder s = new StringBuilder("object"); s./*______*/("Oriented Language"); Console.WriteLine(s); Console.ReadLine(); } Output : objectOriented Language  

 static void Main(string[] args) { string s = " i love you"; Console.WriteLine(s.IndexOf('l') + " " + s.lastIndexOf('o') + " " + s.IndexOf('e')); Console.ReadLine(); }  

 static void Main(string[] args) { string c = "hello"; string c1 = c.Remove(1); Console.WriteLine(c1); Console.ReadLine(); }  

  class Program { static void Main(string[] args) { String s1 = "I love You"; String s2 = s1; Console.WriteLine((s1 == s2) + " " + s1.Equals(s2)); Console.ReadLine(); } }  

  class Program { static void Main(string[] args) { String []chars = {"z", "x", "y", "z", "y"}; for (int i = 0; i < chars.Length; ++i) for (int j = i + 1; j < chars.Length; ++j) if(chars[i].CompareTo(chars[j]) == 0) Console.WriteLine(chars[j]); Console.ReadLine(); } }  

  String a = "Csharp"; String b = "CSHARP"; int c; c = a.CompareTo(b); Console.WriteLine(c);  

  static void Main(string[] args) { String a = "Ilove"; String b = "CSHARP"; b = string.Concat(a, ' ', b); Console.WriteLine(b); Console.ReadLine(); }  

 static void Main(string[] args) { String a = "Ilove"; String b = "CSHARP"; b = string.Concat(a,' ',b); string d = b.TrimStart('I', 'l', 'o', 'H'); Console.WriteLine(d); Console.ReadLine(); }  

 static void Main(string[] args) { String c = " Hello Computer "; String a = c.Trim(); Console.WriteLine(" "" + s + " ""); }  

 static void Main(string[] args) { string s1 = "Hello" + " I " + "Love" + " ComputerScience "; Console.WriteLine(s1); Console.ReadLine(); }  

 static void Main(string[] args) { string s1 = "Hello I Love Csharp "; Console.WriteLine(Convert.ToChar( (s1.IndexOf('I') - s1.IndexOf('l')) * s1.IndexOf('p')); Console.ReadLine(); }  

 static void Main(string[] args) { String obj = "hello"; String obj1 = "world"; String obj2 = obj; Console.WriteLine (obj.Equals(obj2) + " " + obj2.CompareTo(obj) ); Console.ReadLine(); }  

  static void Main(string[] args) { String obj = "hello"; String obj1 = "world"; String obj2 = obj; string s = obj+" "+obj1; Console.WriteLine(s.IndexOf('r')); Console.ReadLine(); }  

  static void Main(string[] args) { String obj = "hello"; String obj1 = "world"; String obj2 = obj; string s = obj + " " + obj1; Console.WriteLine(s.Substring(6 ,5)); Console.ReadLine(); }  

  static void Main(string[] args) { String obj = "hello"; String obj1 = "worn"; String obj2 = obj; Console.WriteLine(obj + " " + (obj1.Replace('w' ,'c'))); Console.ReadLine(); }  

int[, ]a={{5, 4, 3},{9, 2, 6}};


 static void Main(string[] args) { Program p = new Program(); p.display(2, 3, 8); int []a = { 2, 56, 78, 66 }; Console.WriteLine("example of array"); Console.WriteLine("elements added are"); p.display(a); Console.ReadLine(); } public void display(params int[] b) { foreach (int i in b) { Console.WriteLine("ARRAY IS HAVING:{0}", i); } }  

 static void Main(string[] args) { string s1 = " Cshr "; string s2 = s1.Insert(3 , " a "); string s3 = s2.Insert(5 , " p "); for (int i = 0;i < s3.Length; i++) Console.WriteLine(s3[i]); Console.ReadLine(); }  

 static void Main(string[] args) { string s1 = "Hello"; string s2 = "hello"; if (s1 == s2) Console.WriteLine("Equal"); else Console.WriteLine("Unequal"); if (s1.Equals (s2)) Console.WriteLine("Equal"); else Console.WriteLine("Unequal"); Console.ReadLine(); }  

1. String objects cannot be created without using new.
2. Only one object will get created.
3. s1 and s2 both will refer to the same object.
4. Two objects will get created, one pointed to by s1 and another pointed to by s2.
5. s1 and s2 are references to the same object.

String s1, s2; s1 = "Hi"; s2 = "Hi"; 

 String s1 = "ALL MEN ARE CREATED EQUAL"; String s2; s2 = s1.Substring(12, 3); Console.WriteLine(s2);  

 String s1 = "Nagpur"; String s2; s2 = s1.Insert(6, "Mumbai"); Console.WriteLine(s2);  

 namespace McqsMentorConsoleApplication { class SampleProgram { static void Main(string[ ] args) { string str= "Hello World!"; Console.WriteLine( String.Compare(str, "Hello World?" ).GetType() ); } } }  

  1. Single f = 9.8f; String s; s = (String) (f); 2. Single f = 9.8f; String s; s = Convert.ToString(f); 3. Single f = 9.8f; String s; s = f.ToString(); 4. Single f = 9.8f; String s; s = Clnt(f); 5. Single f = 9.8f; String s; s = CString(f);  

 String s1="Kicit"; Console.Write(s1.IndexOf('c') + " "); Console.Write(s1.Length);  

 1. String s = "123"; int i; i = (int)s; 2. String s = "123"; int i; i = int.Parse(s); 3. String s = "123"; int i; i = Int32.Parse(s); 4. String s = "123"; int i; i = Convert.ToInt32(s); 5. String s = "123"; int i; i = CInt(s);