Possible Duplicate:
Exception in thread “main” java.lang.UnsupportedClassVersionError: a (Unsupporte d major.minor version 51.0)NetBeans에서 "지원되지 않는 major.minor 버전 51.0"오류가 발생합니까?
현재 실험실 과제의 일부인 수업을 진행 중입니다. 나는 수업을 썼고 나의 교수는 주 수업을 제공했다. 나는 그녀가 순 콩에서 제공되는 Main.class가 프로그램을 실행할 때 나는 다음과 같은 오류가 나타날 : 나는 또한 내 CreditCard.class과 Main.class가 부착하고
java.lang.UnsupportedClassVersionError: csit1520/lab1f/Main : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: csit1520.lab1f.Main. Program will exit. Exception in thread "main" Java Result:1 ____________________________________
. 어떤 도움이라도 대단히 감사합니다. 나는 프로그래밍에 익숙하지 않고 무엇을 잘못하고 있는지 전혀 모른다. 오류의 첫 번째 문장을 보면
THE MAIN CLASS
package csit.lab1f;
import java.util.Scanner;
/**
*
*/
public class Main {
public static void main(String a[])
{
Scanner input = new Scanner(System.in);
double balance; // user entered
// get first balance from user
System.out.println("Enter account balance(0 to end): ");
balance = input.nextDouble();
while (balance != 0)
{
// get a credit card with user entered balance
CreditCard c = new CreditCard(balance);
// calculate card's new interest, balance, min payment
c.calculateStatement();
// print card's statement
c.printStatement();
// get next balance
System.out.println("Enter account balance (0 to end): ");
balance = input.nextDouble();
}
}
}
신용 카드 CLASS
package csit.lab1f;
/**
*
*
*/
public class CreditCard {
public final static double MINIMUM_PAYMENT_PERCENT = 0.1;
public final static double HIGH_INTEREST_BORDER = 1000;
public final static double HIGH_INTEREST = 0.015;
public final static double LOW_INTEREST = 0.01;
public final static double MINIMUM_PAYMENT = 10.0;
int nextAccountNumber = 12340000;
private int accountID;
private double previousBalance;
private double interest;
private double currentBalance = interest + previousBalance;
private double minimumPayment;
public CreditCard(){
accountID = nextAccountNumber;
nextAccountNumber++;
previousBalance = 0;
interest = 0;
minimumPayment = 0;
currentBalance = 0;}
public CreditCard(double b){
previousBalance = b;
accountID = nextAccountNumber;
nextAccountNumber++;
interest = 0;
minimumPayment = 0;
currentBalance = 0;}
public CreditCard(int a, double b){
previousBalance = b;
accountID = a;
nextAccountNumber ++;
interest = 0;
minimumPayment = 0;
currentBalance = 0;}
public void setInterest(double i){
interest = i;}
public double getInterest(){
return interest;}
public void setnextAccountNumber(int a){
nextAccountNumber = a;}
public int getnextAccountNumber(){
return nextAccountNumber;}
public void setaccountId(int acct){
accountID = acct; }
public int getaccountId(){
return accountID;}
public void setpreviousBalance(double p){
previousBalance = p;}
public double getpreviousBalance(){
return previousBalance;}
public void setminimumPayment(double pm){
minimumPayment = pm;}
public double getminimumPayment(){
return minimumPayment;}
public void setcurrentBalance(double cb){
currentBalance = cb; }
public double getcurrentBalance(){
return currentBalance; }
public void calculateStatement(){
if (previousBalance <= 1000){
interest = previousBalance* 0.015;}
else {
interest = 15+(previousBalance - 1000)*0.01;}
currentBalance = previousBalance + interest;
if (currentBalance < 10){
minimumPayment = currentBalance;}
else {minimumPayment = currentBalance * .10; }
}
public void printStatement(){
String string1 = String.format ("Your old account balance S%4.2f",previousBalance);
String string2 = String.format ("Your current interest $%3.2f",interest);
String string3 = String.format ("Your new account balance $%3.2f",currentBalance);
String string4 = String.format ("Your minimum payment $%4.2f",minimumPayment);
System.out.println(string1);
System.out.println(string2);
System.out.println(string3);
System.out.println(string4);
}
}
Java 버전을 업그레이드하십시오. – SLaks