Question-2 a) No. throw throws 1) Java throw keyword is used to explicitly throw an exception. Java throws keyword is used to declare an

Transcription

1 Question-1 a) Operator:- Symbol used to combine operands Operand: - Operands are values or variables that hold the values. b) Wrapping up of data and function into a single unit is known as encapsulation and this feature provides only the essential features and hides the complex features and it leads to data abstraction. c) Both are known as jump statements break is used to terminate the loop when invoked and continue is used to skip the statements below it and continue with the next iteration. d) Collection of an Operator with Operands is called expression. Collection of expressions is called a statement. e.g. :- a>b e.g:- if(a>b&&a>c) e) Integer, Double, Float, Long, Character and Boolean. f) int:0 double:0.0 char: \u0000 Boolean:false Question-2 a) No. throw throws 1) Java throw keyword is used to explicitly throw an exception. exception. 2) Throw is followed by an instance. 3) Throw is used within the method. 4) You cannot throw multiple exceptions. Java throws keyword is used to declare an Throws is followed by class. Throws is used with the method signature. You can declare multiple exceptions e.g. public void method()throws IOException

2 b) Scope: Local variables are visible only in the method or block they are declared whereas instance variables can been seen by all methods in the class. Local variables are declared inside a method or a block whereas instance variables inside a class but outside a method. c) Action act=new Action(2,3) d) java.lang e) No return type. Void. f) No. because it can be invoked only after the creation of object. g) Primitive data type. Question-3 a) Size of P in bits: 16bits. Size of in bits: 64 bits. b) Public static long convert(double p) p=(long)100*p; return p; c) Infinite d) Sc.nextDouble(); e) formal parameters: x,d,n global variables: a,b,c,nam f) final keyword in final int a=10; means that in a program we cannot change the value of a throughout the program. g) this keyword is used to initialize instantaneous variables. The values set using this keyword will not affect the global data.

3 QUESTION 4: import java.io.*; public class Question4 public static void main(string[]ar)throws IOException BufferedReader bb=new BufferedReader(new InputStreamReader(System.in)); int t,min,l,k,a,fs=0,avg=0; int score[]=new int[10]; System.out.println("Score awarded by the 10 juddes"); for(int i=0;i<10;i++) score[i]=integer.parseint(bb.readline()); for(l=0;l<10;l++) min=l; for(a=l+1;a<10;a++) if(score[a]<score[min]) min=a; t=score[l]; score[l]=score[min]; score[min]=t; System.out.println("The final score is:"); for(k=1;k<9;k++) fs=fs+score[k]; System.out.println(score[k]); avg=fs/8; System.out.println("The final avg is:"+avg);

4 QUESTION 5 import java.io.*; public class Question5 public static void main(string[]ar)throws IOException BufferedReader bb=new BufferedReader(new InputStreamReader(System.in)); Question5 ob=new Question5(); ob.compare(5,6); ob.compare('*','k'); ob.compare("puneet","madhu"); public void compare(int a,int b) if(a>b) System.out.println(a+"is greater"); else System.out.println(b+"is greater"); public void compare(char x,char y) int u=(int)x; int v=(int)y; if(u>v) System.out.println(x+"Higher numeric value"); else System.out.println(y+"Higher numeric value"); public void compare(string c, String d) int e=c.compareto(d); if(e==0) System.out.println("Both Strings are Equal");

5 else if(e>0) System.out.println(c+"is grater than"+d); else if(e<0) System.out.println(d+"is grater than"+e);

6 QUESTION No 6 import java.io.*; class Question6 public static void main(string args[])throws IOException BufferedReader br=new BufferedReader(new InputStreamReader (System.in)); String dop,name; double pb,pw,pp,pba,q1,q2,q3,q4; System.out.println("Enter the Date of Purchase"); dop=br.readline(); System.out.println("Enter the name of buyer"); name=br.readline(); System.out.println("Enter the price of bat"); pb=double.parsedouble(br.readline()); System.out.println("Enter the price of wickets"); pw=double.parsedouble(br.readline()); System.out.println("Enter the price of pads"); pp=double.parsedouble(br.readline()); System.out.println("Enter the price of balls"); pba=double.parsedouble(br.readline()); System.out.println("Enter the quatity of bat"); q1=double.parsedouble(br.readline()); System.out.println("Enter the quantity of wickets"); q2=double.parsedouble(br.readline()); System.out.println("Enter the quantity of pads"); q3=double.parsedouble(br.readline()); System.out.println("Enter the quantity of balls"); q4=double.parsedouble(br.readline()); System.out.println("Date-:"+dop); System.out.println("Name of Buyer:"+name); System.out.println("Item\tPrice\tQuantity\tAmount"); System.out.println("Bat "+pb+"\t"+q1+"\t "+(pb*q1)); System.out.println("Wickets "+pw+"\t"+q2+ "\t"+(pw*q2)); System.out.println("Pads "+pp+"\t"+q3+"\t "+(pp*q3)); System.out.println("Balls "+pba+"\t"+q4+"\t "+(pb*q4)); double Total_Sale=(pb*q1)+(pw*q2)+(pp*q3)+(pb*q4); double sale_tax=total_sale*.175; Total_Sale=Total_Sale+sale_tax; double tax=0; if(total_sale>3000)

7 tax=total_sale*.12; Total_Sale=Total_Sale+tax; else tax=total_sale*.07; Total_Sale=Total_Sale+tax; System.out.println("Total Sale"+Total_Sale); System.out.println("Total Tax"+tax);

8 QUESTION 7 import java.io.*; public class Question7 public static void main(string[]ar)throws IOException BufferedReader bb=new BufferedReader(new InputStreamReader(System.in)); int n,n1,n2,s=0,p=1,sdsp=0; System.out.println("Enter a number"); n=integer.parseint(bb.readline()); n1=n; n2=n; while(n1>0) s=s+n1%10; n1=n1/10; while(n2>0) p=p*(n2%10); n2=n2/10; System.out.println(s+"="+p); sdsp=s+p; if(sdsp==n) System.out.println("Special two digit Number"); else System.out.println("Not a Special two digit Number");

9 QUESTION 8 import java.io.*; public class moviemagic int year; String title; float rating; moviemagic() year=0; title=""; rating=0.0f; public void accept()throws IOException BufferedReader bb=new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter the Year movie is released"); year=integer.parseint(bb.readline()); System.out.println("Enter the Title of the Movie"); title=bb.readline(); System.out.println("Enter the rating of the movie"); rating=float.parsefloat(bb.readline()); public void display() if(rating>0.0f&&rating<=2.0f) System.out.println("Flop"); else if(rating>2.0f&&rating<=3.5f) System.out.println("Semi Hit"); else if(rating>3.5f&&rating<=4.5f) System.out.println("Hit"); else if(rating>4.5f&&rating<=5.0f) System.out.println("SuperHit");

10 else if(rating>5.0f) System.out.println("Invalid rating"); public static void main(string args[])throws IOException moviemagic ob=new moviemagic(); ob.accept(); ob.display();

11 QUESTION No 9 import java.io.*; public class Question9 public static void main(string[]ar)throws IOException BufferedReader bb=new BufferedReader(new InputStreamReader(System.in)); String a,b,st1="",st2=""; int l1,l2; char x,y; System.out.println("Enter The first String"); a=(bb.readline()); System.out.println("Enter The Second String"); b=(bb.readline()); l1=a.length(); l2=b.length(); for(int i=65;i<90;i++) for(int j=0;j<l1;j++) y=a.charat(j); if(y==(int)(i) y==(int)(i+32)) st1=st1+y; for(int i=65;i<90;i++) for(int j=0;j<l2;j++) y=b.charat(j); if(y==(int)(i) y==(int)(i+32)) st2=st2+y; if(st1.equals(st2)) System.out.println("Anargam Strings");

12 else System.out.println("Not a anargam Strings");