這是我當(dāng)前的代碼-public class TriangleNumGenerator { int counter; int sides; public TriangleNumGenerator(){ sides = 1; counter = 2 } public int nextTri(){ sides = sides+counter; counter = counter+1; return sides; } public void reset(){ counter = 2; sides = 1; }}Main(){ TriangleNumGenerator ne = new TriangleNumGenerator(); System.out.println(ne.nextTri());}這段代碼應(yīng)該做的是每當(dāng) nextTri 被調(diào)用時(shí)，它就會(huì)打印“1,3,6,10”等等。但是，該代碼似乎根本沒有打印任何內(nèi)容。我如何讓這個(gè)類真正運(yùn)行？
1 回答
蝴蝶不菲
TA貢獻(xiàn)1810條經(jīng)驗(yàn) 獲得超4個(gè)贊
需要進(jìn)行一些更新，我已將其添加到評(píng)論中：
public class TriangleNumGenerator {
int counter;
int sides;
public TriangleNumGenerator(){
sides = 1;
counter = 2; // forgot ; here**
}
public int nextTri(){
sides = sides+counter;
counter = counter+1;
return sides;
}
public void reset(){
counter = 2;
sides = 1;
}
// you forgot main method; it has to be exactly same so that JVM
// can find it
public static void main(String[] args) {
TriangleNumGenerator ne = new TriangleNumGenerator();
System.out.println(ne.nextTri()); // forgot () in nextTri
}
}
這些是語法錯(cuò)誤。如果您使用任何IDE，那么所有這些都應(yīng)該報(bào)告！
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