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會預期 我想要通過使用起始密碼子「ATG」我的代碼,首先,找到一個基因和終止密碼子「TAA」如果TAA orATG被mising到retun一個空字符串。然後,代碼應該檢查基因是否可以被3整除,從而得到真正的基因然後打印結果。我想用void testFindSimpleGene測試代碼。的Java打印不同的答案
現實 印刷的所有基因都是空白串和各空字符串被打印everal倍
公共類findSimpleGeneAndTest {
public String findSimpleGene(String dna) {
String result = "";
int startIndex = dna.indexOf("ATG");//start codon is ATG
if(startIndex == -1){ //If there is no ATG return empty srting
return "";
}
int stopIndex = dna.indexOf("TAA", startIndex+3); //stop codon is TAA
if(stopIndex ==-1){ //If there is no TAA return empty srting
return "";
}
if ((stopIndex+3)-startIndex %3 != 0){ //Test that gene divisable by 3; a true gene
return "";
}
result = dna.substring(startIndex, stopIndex+3);
return result;
}
public void testFindSimpleGene(){
String dna = "AATGCGTAATATGGT";
System.out.println("DNA strand is " + dna);
String gene = findSimpleGene(dna);
System.out.println("Gene is "+gene);
dna = "AATGCTAGGGTAATATGGT";
System.out.println("DNA strand is " + dna);
gene = findSimpleGene(dna);
System.out.println("Gene is "+ gene);
dna = "ATCCTATGCTTCGGCTGCTCTAATATGGT";
System.out.println("DNA strand is " + dna);
gene = findSimpleGene(dna);
System.out.println("Gene is " + gene);
dna = "ATGTAA";
System.out.println("DNA strand is " + dna);
gene = findSimpleGene(dna);
System.out.println("Gene is " + gene);
}
}
歡迎堆棧溢出!它看起來像你需要學習使用調試器。請幫助你一些補充性的調試技術。如果您之後仍然遇到問題,請隨時返回一個顯示您的問題的[最小化,完整和可驗證示例](http://stackoverflow.com/help/mcve)。 –