31 lines
1.1 KiB
Java
31 lines
1.1 KiB
Java
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package exp4;
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public class PolymorphismTest {
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public static void main(String[] args) {
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Student[] studentArray = new Student[5];
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studentArray[1] = new Undergraduate("鲁向东"); //本科生鲁向东
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studentArray[0] = new Undergraduate("陈建平"); //本科生陈建平
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studentArray[2] = new Postgraduate("匡晓华"); //研究生匡晓华
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studentArray[3] = new Undergraduate("周丽娜"); //本科生周丽娜
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studentArray[4] = new Postgraduate("梁欣欣"); //研究生梁欣欣
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for (int i=0; i<studentArray.length;i++) {
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studentArray[i].setCourseScore(0,87);
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studentArray[i].setCourseScore(1,90);
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studentArray[i].setCourseScore(2,78);
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}
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for (int i=0; i<5 ;i++) {
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studentArray[i].calculateGrade();
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}
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System.out.println("姓名" + " 类型" +" 成绩");
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System.out.println("-----------------------");
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for (int i=0; i<5 ;i++) {
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System.out.println(studentArray[i].getName( )+" "+
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studentArray[i].getType( )+" "+
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studentArray[i].getCourseGrade( ));
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}
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}
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}
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