如何判断一个数组里是否包含一个数
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第一种方法:遍历数组
String[] arr1 = {"1","2","3","4","6","7"};
for (int i = 0; i < arr1.length; i++) { if("5".equals(arr1[i])) { System.out.PRintln("包含"); }else { System.out.println("不包含"); }
}
第二种方法:先把数组转换成list;再判断contains
String[] arr = {"1","2","3","4","6","7"}; List<String> list=Arrays.asList(arr); System.out.println(list.contains("5"));
String[] arr1 = {"1","2","3","4","6","7"};
for (int i = 0; i < arr1.length; i++) { if("5".equals(arr1[i])) { System.out.PRintln("包含"); }else { System.out.println("不包含"); }
}
第二种方法:先把数组转换成list;再判断contains
String[] arr = {"1","2","3","4","6","7"}; List<String> list=Arrays.asList(arr); System.out.println(list.contains("5"));
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