JAVA 2019 Old Papers Solution
year 2019 Q.no 11
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class BIM { public static void main(String args[]) { int a=0, b=1, c; System.out.println(a); System.out.println(b); for(int i=3;i<=10;i++) { c=a+b; a=b; b=c; System.out.println(c); } } } |
Q.no 12
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String aar[]={"January","February","March","April","May","June","July","August","September","October","November","December"}; for(int i=0; i<aar.length; i++) { System.out.println("month"+aar[i]); try{ Thread.sleep(1000); } catch(Exception e) { System.out.println(e); } }}} class days implements Runnable { public void run() { String aa[]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"}; for(int i=0; i<aa.length; i++) { System.out.println("month"+aa[i]); try{ Thread.sleep(1500); } catch(Exception e) { System.out.println(e); } }}} class den { public static void main(String args[]) { month m=new month(); Thread t=new Thread(m); t.start(); days d=new days(); Thread t1=new Thread(d); t1.start(); } } |
Q.no 13
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class Number { int x; int y; int z; Number(inta,intb,int c) { x=a; y=b; z=c; } intgetMax(){ if(x>y&&y>x) return(x); else if(y>z) return(y); else return(z); } } classNumberDemo { public static void main(String args[]) { Number n=new Number(3,7,5); System.out.println("largest number is"+n.getMax()); } } |
Q.no 14
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class Box { int length; int breadth; int height; Box(inta,intb,int c) { length=a; breadth=b; height=c; } voidgetVolume(){ int v=length*breadth*height; System.out.println("Volume is"+v); }} classBoxWeight extends Box{ int weight; BoxWeight(inta,int b, int c) { super(a,b,c); } voidsetweight(int w) { weight=w; } voidgetWeight(){ System.out.println("weight"+weight); } void display(){ super.getVolume(); } } classBoxDemo { public static void main(String args[]) { BoxWeight n=new BoxWeight(0,0,0); n.setweight(200); n.getWeight(); BoxWeightob=new BoxWeight(2,3,4); ob.display(); } } |
Q.no 15
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importjava.util.Scanner; import java.io.*; public class JavaProgram { public static void main(String[] input) { String fname; Scanner scan = new Scanner(System.in); /* enter filename with extension to open and read its content */ System.out.print("Enter File Name to Open (with extension like file.txt) : "); fname = scan.nextLine(); /* this will reference only one line at a time */ String line = null; try { /* FileReader reads text files in the default encoding */ FileReaderfileReader = new FileReader(fname); /* always wrap the FileReader in BufferedReader */ BufferedReaderbufferedReader = new BufferedReader(fileReader); while((line = bufferedReader.readLine()) != null) { System.out.println(line); } /* always close the file after use */ bufferedReader.close(); } catch(IOException ex) { System.out.println("Error reading file named '" + fname + "'"); } } } |