V.Vignesh , P23CS398
import java.lang.*;
import java.io.*;
class Questions{
public String [][]qpa;
public String[][]qca;
Questions()throws IOException
{
qpa=new String[10][5];
DataInputStream in=new DataInputStream(System.in);
qpa[0][0]="How to run Javaprogram on the command prompt?";
qpa[0][1]="1.javac JavaProgram";
qpa[0][2]="2.java JavaProgram";
qpa[0][3]="3.javac JavaProgram.java";
qpa[0][4]="4.No one";
qpa[1][0]="What is the use of the println method?";
qpa[1][1]="1.It is used to print text on the screen.";
qpa[1][2]="2.It is used to print text on the screen with the linebreak.";
qpa[1][3]="3.It is used to read text from keyboard.";
qpa[1][4]="4.It is used to read text from a file.";
qpa[2][0]="How to read a character from the keyboard?";
qpa[2][1]="1.char c=System.read()";
qpa[2][2]="2.charc=System.in.read()";
qpa[2][3]="3.charc=(char)System.read()";
qpa[2][4]="4.char c=(char)System.in.read()";
qpa[3][0]="Which one is a single-linecomment?";
qpa[3][1]="1./...";
qpa[3][2]="2.//...";
qpa[3][3]="3./*...";
qpa[3][4]="4./.../";
qpa[4][0]="Which scanner class method is used to read integer value from the user ?";
qpa[4][1]="1.next()";
qpa[4][2]="2.nextInteger()";
qpa[4][3]="3.nextInt()";
qpa[4][4]="4.readInt()";
qpa[5][0]="Which scanner class method isused to read string value from the user ?";
qpa[5][1]="1.next()";
qpa[5][2]="2.nextString()";
qpa[5][3]="3.nextline()";
qpa[5][4]="4.Both 1 and 3";
qpa[6][0]="Which is the correct syntax to declare scanner class object ?";
qpa[6][1]="1.Scanner objectname= Scanner();";
qpa[6][2]="2.Scanner objectname= new scanner();";
qpa[6][3]="3.Scanner objectname= Scanner(System.in);";
qpa[6][4]="4.Scanner objectname= new Scanner(System.in);";
qpa[7][0]="Which package should be imported to use Scanner class ?";
qpa[7][1]="1.import java.util.System.in;";
qpa[7][2]="2.import java.util.Scanner;";
qpa[7][3]="3.import java.util.System.in;";
qpa[7][4]="4.import java.util.input;";
qca=new String[10][2];
qca[0][0]="How to run Javaprogram on the commandprompt?";
qca[0][1]="2.java JavaProgram";
qca[1][0]="What is the use of the println method ?";
qca[1][1]="2.It is used to print text on the screen with the linebreak.";
qca[2][0]="How to read a character from the keyboard?";
qca[2][1]="4.char c=(char)System.in.read()";
qca[3][0]="Which one is a single-linecomment?";
qca[3][1]="2.//...";
qca[4][0]="Which scanner class method is used to read integer value from the user ?";
qca[4][1]="3.nextInt()";
qca[5][0]="Which scanner class method isused to read string value from the user ?";
qca[5][1]="4.Both 1 and 3";
qca[6][0]="Which is the correct syntax to declare scanner class object ?";
qca[6][1]="4.Scanner objectname= new Scanner(System.in);";
qca[7][0]="Which package should be imported to use Scanner class ?";
qca[7][1]="2.import java.util.Scanner;";
}
}
public class qu{
public static void main(String[]args)throws IOException{
DataInputStream in=new DataInputStream(System.in);
int x,correct=0,wrong=0,i,j;
String ans[]=new String[10];
Questions q=new Questions();
System.out.println("JAVA QUIZ");
System.out.println(" ");
for(i=0;i<8;i++)
{
for(j=0;j<5;j++)
{
System.out.println(q.qpa[i][j]);
}
System.out.println("youranswer:");
x=Integer.parseInt(in.readLine()); ans[i]=q.qpa[i][x];
}
for(i=0;i<8;i++)
{
if(q.qca[i][1].equals(ans[i]))correct++;
else
wrong++;
}
System.out.println("CORRECT ANSWERS");
for(i=0;i<8;i++){
System.out.println();
System.out.println(q.qpa[i][0]); System.out.println("correctanswer:"+q.qca[i][1]);
System.out.println("youranswer:"+ans[i]);
}
System.out.println("Correct="+correct+"\twrong="+wrong);
}
}
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