Solution to specimen paper 2020.docx

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  Solution to specimen paper 2020 Section-B 4. import java.util.*; import*; public class s_2019_4 { String name; int w; double charge,s_tax,tot_bill; public void accept() { Scanner sc=new Scanner(; System.out.println( Enter your name ); name=sc.nextLine(); System.out.println( Enter your parcel weight ); w=sc.nextInt(); } public void calculate() { if (w<=10) charge=25*w; if(w>10&&w<=30) charge=25*w+20*(w-10); if(w>30) charge=25*w+20*(w-10)+10*(w-30);   s_tax=charge*.05; tot_bill=charge+s_tax; } public void print() { System.out.println( Name \t Weight of parcel t Bill amount ); System.out.println( =============================================== ); System.out.println(name + \t\t + w + \t\t +tot_bill); } public static void main(String ar[])throws IOException { s_2019_4 sp=new s_2019_4(); sp.accept(); sp.calculate(); sp.print(); } } 5. import java.util.*; import*; public class s_ { int i,j,min,n=3; String name[]=new String[n],tname; double per[]=new double[n],tper;   //int i,j,n; public void main() throws IOException { Scanner sc=new Scanner(; System.out.print( Enter your name and percentage marks ); for( i=0;i<n;i++) { name[i]=sc.nextLine(); per[i]=Double.parseDouble(sc.nextLine()); } for(int i=0;i<n-1;i++) { min=i; for(int j=i+1;j<n;i++) { if(per[j]>per[min]) { min=j; } tper=per[i]; per[i]=per[min]; per[min]=tper; tname=name[i];   name[i]=name[min]; name[min]=tname; } System.out.print( the percentage marks in descending order are ); for(int k=n;k>0;k--) System.out.print(name[k]+ \t +per[k } } } 6. public class s_19_6 { int Sum(int A,int B) { int sum=0; for(int i=A;i<=B;i++) if(A%2==0) sum+=A; return sum; } double Sum(double N) {
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