为什么即使对于非相等的字符串,equalsignorecase也会返回true

Question

import java.util.Scanner;


public class Main {


public static void main(String[] args) {
    boolean x;


    Scanner sc = new Scanner(System.in);

    String igual = sc.next().toString();        

    String[] yes = new String[15];
    yes[0]="When I find myself in times of trouble";
    yes[1]="Mother Mary comes to me";
    yes[2]="Speaking words of wisdom";
    yes[3]="Let it be ";
    yes[4]="And in my hour of darkness ";
    yes[5]="She is standing right it front of me ";
    yes[6]="mama just killed a man";
    yes[7]="And when the broken hearted people ";
    yes[8]="Living in the world agree ";
    yes[9]="There will be an answer ";
    yes[10]="For though they may be parted";
    yes[11]="there is still a chance that they will see";
    yes[12]="And when the night is cloudy";
    yes[13]="There is still a light that shines on me";
    yes[14]="Shine until tomorrow";

    String[] no = new String[5];
    no[0]="I wake up to the sound of music";
    no[1]="Mother Mary comes to me";
    no[2]="put a gun against his head";
    no[3]="pulled my trigger now his dead";
    no[4]="mama life had just began";

    // searches in the yes array
    for (int i=0 ; i<yes.length ; i++){
    x=igual.trim().equalsIgnoreCase(yes[i].trim());

    if (x=true){
        System.out.println("true");
    }
    }

            //searches in the no array
    for (int j=0 ; j<no.length ; j++){
    x = igual.trim().equalsIgnoreCase(no[j].trim());
    if (x=true){
        System.out.println("false");
    }
    }

}

}

即使您输入的字符串仅等于数组中的一个字符串,也会打印15次true和5次false.我对代码进行了调试,结果就是结果看起来它在'if'条件中设置'x'变量提前感谢你.

Answer 1

作业将返回其右侧.因此(从您的 - if陈述条件):

x=true

总是回来true.你可能正在寻找,x == true或者更常规地,x(如if (x) {...}).通常应该优先考虑更简单的第二变体.