输出数组中最大值

public class ArrToBig {
    public static void main(String[] args) {
        int[] arr={-3,6,-3,-10,-5,-5,2};
        boolean result=true;
        int num=0;
        int num2=arr[0];
        for (int i=0;i<arr.length;i++){
            if (i+1<arr.length){
                if (num<arr[i]){
                    result=true;
                    num=arr[i];
                }
                if (num>arr[i]){
                    result=false;
                    if (num2<arr[i+1]) {
                        num2=arr[i+1];
                    }
                }
            }
        }
        if (result){
            System.out.println("最大值为："+num);
        }else {
            System.out.println("最大值为："+num2);
        }
    }
}

输出数组中最大值下标

public class ArrToBigIndex {
    public static void main(String[] args) {
        int[] arr={-2,-1,-3,-10,-5,-5,-2};
        boolean result=true;
        int num=0;
        int num2=arr[0];
        int index=0;
        for (int i=0;i<arr.length;i++){
            if (i+1<arr.length){
                if (num<arr[i]){
                    result=true;
                    num=arr[i];
                    index=i;
                }
                if (num>arr[i]){
                    result=false;
                    if (num2<arr[i+1]) {
                        num2=arr[i+1];
                        index=i+1;
                    }
                }
            }
        }
        if (result){
            System.out.println("最大值下标为："+index);
        }else {
            System.out.println("最大值下标为："+index);
        }
    }
}

输出数组中最小值

public class ArrToNoBig {
    public static void main(String[] args) {
        int[] arr={-2,4,-3,-10,-15,-5,3};
        boolean result=true;
        int num=arr[0];
        int num2=arr[0];
        int index=0;
        for (int i=0;i<arr.length;i++){
            if (i+1<arr.length){
                if (num>arr[i+1]){
                    result=true;
                    num=arr[i+1];
                    index=i+1;
                }
                if (num>arr[i]){
                    result=false;
                    if (num2>arr[i+1]) {
                        num2=arr[i+1];
                        index=i+1;
                    }
                }
            }
        }
        if (result){
            System.out.println("最小值为："+num);
        }else {
            System.out.println("最小值为："+num2);
        }
    }
}

输出数组中最小值下标

public class ArrToNoBigIndex {
    public static void main(String[] args) {
        int[] arr={-2,4,-3,-10,-15,-5,3};
        boolean result=true;
        int num=arr[0];
        int num2=arr[0];
        int index=0;
        for (int i=0;i<arr.length;i++){
            if (i+1<arr.length){
                if (num>arr[i+1]){
                    result=true;
                    num=arr[i+1];
                    index=i+1;
                }
                if (num>arr[i]){
                    result=false;
                    if (num2>arr[i+1]) {
                        num2=arr[i+1];
                        index=i+1;
                    }
                }
            }
        }
        if (result){
            System.out.println("最小值下标为："+index);
        }else {
            System.out.println("最小值下标为："+index);
        }
    }
}