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Java lab exercises that include the codes for java classes ,construtor,operator overloading and basics
Typology: Assignments
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do { System.out.println("Course:"); s1[i].lc[j]=sc.nextLine(); if((s1[i].lc[j].substring(0,3)).equals("CSE")!=true) System.out.println("Enter again"); }while((s1[i].lc[j].substring(0,3)).equals("CSE")!=true); do { System.out.println("Marks: "); s1[i].lm[j]=sc.nextInt(); if(s1[i].lm[j]<0 && s1[i].lm[j]>100) System.out.println("Enter again"); }while(s1[i].lm[j]<0 && s1[i].lm[j]>100); sc.nextLine(); } } int p1=0,p2=0,sum1=0,sum2=0,be=0; for(int i=0;i<n;++i) { if(s1[i].lm[0]>40) ++p1; sum1+=s1[i].lm[0]; if(s1[i].lm[1]>40) ++p2; sum2+=s1[i].lm[1]; if(s1[i].lm[1]<50 && s1[i].lm[0]<50) ++be; } double ps1=(double)p1/n100.0; double ca1=(double)sum1/(n); double ps2=(double)p2/n100.0; double ca2=(double)sum2/(n); int max1=0,m1=0,m2=0,max2=0; for(int i=0;i<n;++i) { if(s1[i].lm[0]>m1) { max1=s1[i].rno; m1=s1[i].lm[0]; } if(s1[i].lm[1]>m2) {
โ Display number of customers who got discounts and their phone numbers โ Which customer got highest purchase display phone number and amount.( there may be more than one bill for each customer) โ Calculate the overall discount percentage given for the customers. Code: import java.util. Scanner; class Bill{ static int id=52330; int no; String cnum; String items[]=new String[10]; int uprice[]=new int[10]; int quantity[]=new int[10]; int price[]=new int[10]; int total; Bill(String i[],int up[],int q[],String cn){ no=id++; items=i; uprice=up; cnum=cn; quantity=q; for(int j=0;j<items.length;j++){ price[j]=uprice[j]*quantity[j]; total+=price[j]; } } void discount(Bill b[],int n){ int max=0,index=0; for(int i=0;i<n;i++){ if(b[i].total>3000) System.out.println(b[i].no+" "+b[i].cnum); if(b[i].total>max){ max=b[i].total; index=i;